Zone Forecast Product
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
981
FPUS55 KTFX 212137
ZFPTFX
Zone Forecast Product for Central and Southwest Montana
National Weather Service Great Falls MT
336 PM MDT Fri Aug 21 2026
Spot temperatures and probabilities of measurable precipitation
are for tonight, Saturday, Saturday night, and Sunday.
MTZ301-221000-
East Glacier Park Region-
Including the cities of East Glacier Park, Kiowa, Babb,
Saint Mary, Marias Pass, and Logan Pass
336 PM MDT Fri Aug 21 2026
.TONIGHT...Mostly cloudy until early morning, then a 20 percent
chance of rain showers late in the night. Lows in the upper 50s.
Southeast winds up to 10 mph.
.SATURDAY...Mostly cloudy with slight chance of rain showers in
the morning, then mostly sunny with slight chance of
thunderstorms in the afternoon. Highs 72 to 82. Southwest winds
up to 10 mph. Chance of precipitation 20 percent.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows 54 to 60. Southwest winds 5 to 15 mph.
.SUNDAY...Breezy, sunny. Highs 62 to 72. Southwest winds 10 to
15 mph increasing to 15 to 25 mph with gusts to around 45 mph in
the afternoon.
.SUNDAY NIGHT...Windy. Mostly clear. Lows in the upper 40s.
Southwest winds 15 to 30 mph with gusts to around 45 mph
decreasing to 10 to 15 mph with gusts to around 35 mph after
midnight.
.MONDAY...Sunny. Highs 63 to 73.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows in the upper 40s.
Highs 68 to 78.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs 67 to 77.
Lows in the lower 50s.
.THURSDAY...Mostly sunny. Highs 60 to 70.
.THURSDAY NIGHT...Mostly clear with a 20 percent chance of rain
showers. Lows in the upper 40s.
.FRIDAY...Sunny. Highs 60 to 70.
$$
MTZ307-221000-
Southern Rocky Mountain Front-
Including the city of Rogers Pass
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy early in the evening then becoming
mostly cloudy. A 20 percent chance of rain showers after
midnight. Lows 54 to 60. East winds up to 10 mph.
.SATURDAY...Mostly cloudy with slight chance of rain showers in
the morning, then mostly sunny with slight chance of
thunderstorms in the afternoon. Highs 74 to 84. Southwest winds
up to 10 mph. Chance of precipitation 20 percent.
.SATURDAY NIGHT...Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms in the evening, then slight chance
of thunderstorms after midnight. Lows 52 to 58. Southwest winds
up to 10 mph. Chance of precipitation 50 percent.
.SUNDAY...Sunny. Highs 67 to 77. Southwest winds 5 to 15 mph.
Gusts up to 35 mph in the afternoon.
.SUNDAY NIGHT...Colder. Mostly clear. Lows 44 to 50. West winds
10 to 20 mph decreasing to 5 to 10 mph after midnight. Gusts up
to 40 mph.
.MONDAY...Sunny. Highs 66 to 76.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 46 to 52. Highs
69 to 79.
.TUESDAY NIGHT...Partly cloudy. Lows 49 to 55.
.WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms
in the afternoon. Highs 69 to 79.
.WEDNESDAY NIGHT...Partly cloudy. Lows 47 to 53.
.THURSDAY...Sunny. Highs 63 to 73.
.THURSDAY NIGHT...Partly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows 44 to 50.
.FRIDAY...Sunny. A 20 percent chance of rain showers in the
afternoon. Highs 63 to 73.
$$
MTZ302-221000-
Northern High Plains-
Including the cities of Browning, Heart Butte, and Dupuyer
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows in the mid 50s. Southeast winds 5 to 10 mph shifting
to the southwest with gusts to around 20 mph after midnight.
.SATURDAY...Cloudy with slight chance of rain showers in the
morning, then mostly sunny with slight chance of thunderstorms in
the afternoon. Highs in the mid 80s. South winds up to 10 mph.
Gusts up to 20 mph in the morning. Chance of precipitation
20 percent.
.SATURDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. A 20 percent chance of thunderstorms. Lows in the
upper 50s. Southwest winds 5 to 10 mph.
.SUNDAY...Breezy. Mostly sunny. Highs 76 to 82. West winds 5 to
15 mph increasing to southwest 15 to 25 mph with gusts to around
40 mph in the afternoon.
.SUNDAY NIGHT...Breezy. Mostly clear. Lows in the lower 50s. West
winds 15 to 25 mph with gusts to around 40 mph decreasing to 5 to
15 mph after midnight.
.MONDAY THROUGH TUESDAY NIGHT...Mostly clear. Highs in the upper
70s. Lows in the lower 50s.
.WEDNESDAY...Mostly sunny. A 20 percent chance of rain showers in
the afternoon. Highs in the lower 80s.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows in the lower
50s. Highs in the mid 70s.
.THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows in the upper 40s.
.FRIDAY...Mostly sunny. Highs in the mid 70s.
$$
MTZ308-221000-
Southern High Plains-
Including the cities of Bynum, Choteau, and Pendroy
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy early in the evening then becoming
mostly cloudy. A 20 percent chance of rain showers late in the
night. Lows around 60. Northeast winds 5 to 10 mph shifting to
the northwest after midnight.
.SATURDAY...Mostly cloudy with a 20 percent chance of rain
showers in the morning, then mostly sunny in the afternoon. Highs
in the upper 80s. Southwest winds up to 5 mph shifting to the
south in the afternoon.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows in the upper 50s. Southwest winds 5 to
10 mph.
.SUNDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs in the mid 80s. Southwest winds up to 10 mph
increasing to 10 to 15 mph with gusts to around 35 mph in the
afternoon.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. West winds
5 to 15 mph. Gusts up to 35 mph in the evening.
.MONDAY...Sunny. Highs around 80.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly clear. Lows in the
mid 50s. Highs in the lower 80s.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. A 20 percent
chance of thunderstorms. Highs in the mid 80s. Lows in the mid
50s.
.THURSDAY...Mostly sunny. Highs around 80.
.THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows in the lower 50s.
.FRIDAY...Sunny. A 20 percent chance of rain showers in the
afternoon. Highs in the upper 70s.
$$
MTZ303-221000-
Eastern Glacier, Western Toole, and Central Pondera-
Including the cities of Cut Bank, Ethridge, and Santa Rita
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows in the upper 50s. East winds up to 10 mph. Gusts up
to 30 mph after midnight.
.SATURDAY...Mostly cloudy with a 20 percent chance of rain
showers in the morning, then mostly sunny in the afternoon. Highs
in the mid 80s. Southeast winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows in the upper 50s. South winds 5 to 10 mph
shifting to the southwest after midnight.
.SUNDAY...Breezy. Mostly sunny. Slight chance of rain showers in
the morning, then chance of rain showers and slight chance of
thunderstorms in the afternoon. Highs in the lower 80s. West
winds 5 to 10 mph increasing to 10 to 25 mph with gusts to around
40 mph in the afternoon. Chance of precipitation 30 percent.
.SUNDAY NIGHT...Breezy. Mostly clear. Lows in the lower 50s. West
winds 15 to 25 mph with gusts to around 40 mph decreasing to 5 to
15 mph after midnight.
.MONDAY THROUGH TUESDAY NIGHT...Mostly clear. Highs in the upper
70s. Lows in the lower 50s.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. A 20 percent
chance of rain showers. Highs in the mid 80s. Lows in the lower
50s.
.THURSDAY...Mostly sunny. Highs in the upper 70s.
.THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows around 50.
.FRIDAY...Sunny. Highs in the upper 70s.
&&
TEMPERATURE / PRECIPITATION
Cut Bank 55 86 57 82 / 10 20 20 20
$$
MTZ304-221000-
Eastern Toole and Liberty-
Including the cities of Devon, Shelby, Chester, Galata, Joplin,
Lothair, and Whitlash
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy until early morning then becoming mostly
cloudy. Lows in the lower 60s. East winds 5 to 15 mph with gusts
to around 35 mph.
.SATURDAY...Mostly cloudy. A 20 percent chance of rain showers in
the morning. Highs 84 to 90. Southeast winds 5 to 15 mph.
.SATURDAY NIGHT...Mostly cloudy. Lows in the lower 60s. South
winds up to 10 mph.
.SUNDAY...Partly sunny. Slight chance of rain showers in the
morning, then chance of rain showers and slight chance of
thunderstorms in the afternoon. Highs 84 to 90. West winds up to
15 mph. Gusts up to 30 mph in the afternoon. Chance of
precipitation 40 percent.
.SUNDAY NIGHT...Breezy. Mostly clear. Lows in the mid 50s. West
winds 10 to 25 mph decreasing to 10 to 15 mph after midnight.
.MONDAY THROUGH TUESDAY NIGHT...Mostly clear. Highs 75 to 82.
Lows in the mid 50s.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. A 20 percent
chance of rain showers. Highs in the mid 80s. Lows in the mid
50s.
.THURSDAY...Mostly sunny. Highs 78 to 84.
.THURSDAY NIGHT...Partly cloudy. A 20 percent chance of rain
showers after midnight. Lows in the lower 50s.
.FRIDAY...Sunny. A 20 percent chance of rain showers in the
morning. Highs around 80.
$$
MTZ305-221000-
Hill County-
Including the city of Havre
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy until early morning then becoming mostly
cloudy. Lows in the upper 50s. East winds 5 to 10 mph. Gusts up
to 25 mph increasing to 35 mph after midnight.
.SATURDAY...Mostly cloudy. A 20 percent chance of rain showers in
the morning. Highs in the lower 90s. Southeast winds 10 to 15 mph
with gusts to around 30 mph.
.SATURDAY NIGHT...Mostly cloudy. Lows in the lower 60s. Southeast
winds up to 15 mph. Gusts up to 30 mph in the evening.
.SUNDAY...Mostly sunny. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the lower 90s. Southwest
winds up to 15 mph. Chance of precipitation 40 percent.
.SUNDAY NIGHT...Mostly clear. A 20 percent chance of
thunderstorms in the evening. Lows in the mid 50s. West winds
10 to 15 mph with gusts to around 30 mph.
.MONDAY...Not as warm. Sunny. Highs around 80.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly clear. Lows in the
mid 50s. Highs in the mid 80s.
.WEDNESDAY...Mostly sunny. Highs in the upper 80s.
.WEDNESDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows in the mid 50s.
.THURSDAY...Mostly sunny. Highs in the mid 80s.
.THURSDAY NIGHT...Partly cloudy. A 20 percent chance of rain
showers after midnight. Lows in the lower 50s.
.FRIDAY...Sunny. A 20 percent chance of rain showers in the
morning. Highs in the lower 80s.
&&
TEMPERATURE / PRECIPITATION
Havre 60 94 62 94 / 0 10 10 20
$$
MTZ306-221000-
Northern Blaine County-
Including the cities of Chinook, Zurich, Harlem, Hogeland,
and Fort Belknap
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy. Lows in the upper 50s. East winds 5 to
15 mph with gusts to around 35 mph.
.SATURDAY...Breezy. Mostly sunny in the morning then becoming
mostly cloudy. Highs in the upper 80s. Southeast winds 10 to
25 mph increasing to 20 to 25 mph in the afternoon. Gusts up to
40 mph.
.SATURDAY NIGHT...Breezy. Mostly cloudy. Lows in the lower 60s.
Southeast winds 15 to 25 mph decreasing to 10 to 15 mph after
midnight.
.SUNDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs in the lower 90s. Southeast winds up to
10 mph shifting to the southwest in the afternoon.
.SUNDAY NIGHT...Partly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows in the upper 50s. West winds
5 to 15 mph.
.MONDAY...Breezy. Not as warm. Sunny. Highs in the lower 80s.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly clear. Lows in the
lower 50s. Highs in the lower 80s.
.WEDNESDAY...Sunny. Highs in the upper 80s.
.WEDNESDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. A 20 percent chance of rain showers. Lows in the
mid 50s.
.THURSDAY...Mostly sunny. Highs in the mid 80s.
.THURSDAY NIGHT...Partly cloudy. A 20 percent chance of rain
showers after midnight. Lows in the lower 50s.
.FRIDAY...Sunny. A 20 percent chance of rain showers in the
morning. Highs in the lower 80s.
$$
MTZ309-221000-
Eastern Pondera and Eastern Teton-
Including the cities of Brady, Conrad, and Ledger
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows in the upper 50s. East winds up to 10 mph with gusts
to around 25 mph.
.SATURDAY...Partly sunny. A 20 percent chance of rain showers in
the morning. Highs around 90. Southeast winds up to 10 mph.
.SATURDAY NIGHT...Mostly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows in the upper 50s. South winds
5 to 10 mph.
.SUNDAY...Mostly sunny. Chance of rain showers and slight chance
of thunderstorms in the afternoon. Highs in the upper 80s.
Southwest winds up to 10 mph increasing to 10 to 15 mph with
gusts to around 35 mph in the afternoon. Chance of precipitation
30 percent.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. West winds
15 to 20 mph decreasing to 5 to 10 mph after midnight.
.MONDAY...Sunny. Highs around 80.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly clear. Lows in the
mid 50s. Highs in the mid 80s.
.WEDNESDAY...Mostly sunny. A 20 percent chance of rain showers in
the afternoon. Highs in the upper 80s.
.WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows in the mid 50s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows in the lower 50s.
.FRIDAY...Sunny. Highs in the lower 80s.
$$
MTZ310-221000-
Western and Central Chouteau County-
Including the cities of Floweree, Carter, and Fort Benton
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows in the lower 60s. East winds 5 to 15 mph with gusts
to around 40 mph.
.SATURDAY...Partly sunny. A 20 percent chance of rain showers in
the morning. Highs in the lower 90s. Southeast winds 5 to 15 mph
with gusts to around 35 mph.
.SATURDAY NIGHT...Mostly cloudy. Lows in the lower 60s. South
winds up to 10 mph. Gusts up to 25 mph in the evening.
.SUNDAY...Mostly sunny. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the lower 90s. Southwest
winds up to 15 mph. Gusts up to 30 mph in the afternoon. Chance
of precipitation 30 percent.
.SUNDAY NIGHT...Mostly clear. A 20 percent chance of rain showers
in the evening. Lows in the upper 50s. West winds 5 to 15 mph.
Gusts up to 30 mph in the evening.
.MONDAY...Not as warm. Sunny. Highs in the lower 80s.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly clear. Lows in the
upper 50s. Highs in the mid 80s.
.WEDNESDAY...Mostly sunny. Highs in the upper 80s.
.WEDNESDAY NIGHT...Partly cloudy. A 30 percent chance of rain
showers in the evening. Lows in the upper 50s.
.THURSDAY...Mostly sunny. Highs in the mid 80s.
.THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows in the mid 50s.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
$$
MTZ311-221000-
Bears Paw Mountains and Southern Blaine-
Including the city of Rocky Boy
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy until early morning then becoming mostly
cloudy. Lows in the lower 60s. Southeast winds 5 to 15 mph. Gusts
up to 30 mph increasing to 40 mph after midnight.
.SATURDAY...Partly sunny. Highs 85 to 91. Southeast winds 10 to
20 mph with gusts to around 35 mph.
.SATURDAY NIGHT...Mostly cloudy. Lows in the mid 60s. Southeast
winds 10 to 15 mph with gusts to around 30 mph decreasing to up
to 10 mph after midnight.
.SUNDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs 87 to 93. Southwest winds up to 10 mph.
.SUNDAY NIGHT...Mostly clear. A 20 percent chance of
thunderstorms in the evening. Lows in the upper 50s. West winds
5 to 15 mph with gusts to around 30 mph.
.MONDAY...Sunny. Highs 77 to 83.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly clear. Lows in the
upper 50s. Highs 80 to 86.
.WEDNESDAY...Mostly sunny. Highs 84 to 90.
.WEDNESDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers in the evening, then mostly cloudy after midnight. Lows
around 60.
.THURSDAY...Mostly sunny. Highs 80 to 86.
.THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows in the mid 50s.
.FRIDAY...Mostly sunny. Highs 78 to 84.
$$
MTZ312-221000-
Cascade County below 5000ft-
Including the city of Great Falls
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy early in the evening then becoming
mostly cloudy. Lows in the lower 60s. East winds up to 10 mph
with gusts to around 35 mph.
.SATURDAY...Partly sunny. A 20 percent chance of rain showers in
the morning. Highs in the lower 90s. South winds up to 10 mph.
.SATURDAY NIGHT...Mostly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows in the lower 60s. South winds
5 to 15 mph.
.SUNDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs in the upper 80s. Southwest winds 5 to
20 mph. Gusts up to 35 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. West winds
5 to 15 mph. Gusts up to 35 mph in the evening.
.MONDAY...Sunny. Highs in the lower 80s.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly clear. Lows in the
mid 50s. Highs in the mid 80s.
.WEDNESDAY...Mostly sunny. Highs in the upper 80s.
.WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of rain
showers in the evening. Lows in the mid 50s.
.THURSDAY...Sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Partly cloudy. A 20 percent chance of rain
showers in the evening. Lows in the lower 50s.
.FRIDAY...Sunny. Highs in the lower 80s.
&&
TEMPERATURE / PRECIPITATION
Great Falls Arpt 60 92 62 91 / 10 20 20 20
$$
MTZ313-221000-
Judith Basin County and Judith Gap-
Including the cities of Raynesford, Geyser, Stanford, Windham,
Benchland, Hobson, and Moccasin
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy early in the evening then becoming
mostly cloudy. Lows around 60. Southeast winds 5 to 15 mph with
gusts to around 35 mph.
.SATURDAY...Partly sunny. Slight chance of rain showers in the
morning, then slight chance of thunderstorms in the afternoon.
Highs in the upper 80s. South winds 5 to 15 mph with gusts to
around 30 mph. Chance of precipitation 20 percent.
.SATURDAY NIGHT...Mostly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows around 60. South winds 5 to
15 mph.
.SUNDAY...Mostly sunny. Chance of rain showers and slight chance
of thunderstorms in the afternoon. Highs in the upper 80s.
Southwest winds 5 to 15 mph. Chance of precipitation 50 percent.
.SUNDAY NIGHT...Mostly clear. A 20 percent chance of
thunderstorms in the evening. Lows in the mid 50s. West winds
5 to 15 mph.
.MONDAY...Sunny. Highs in the lower 80s.
.MONDAY NIGHT...Mostly clear. Lows in the lower 50s.
.TUESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs in the lower 80s.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 50s.
.WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms
in the afternoon. Highs in the upper 80s.
.WEDNESDAY NIGHT...Partly cloudy. Chance of rain showers and
slight chance of thunderstorms in the evening. Lows in the mid
50s. Chance of precipitation 30 percent.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows in the lower 50s.
.FRIDAY...Sunny. Highs in the lower 80s.
$$
MTZ314-221000-
Fergus County below 4500ft-
Including the cities of Hilger and Lewistown
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows in the lower 60s. East winds 5 to 15 mph. Gusts up
to 30 mph increasing to 40 mph after midnight.
.SATURDAY...Partly sunny. A 20 percent chance of rain showers in
the morning. Highs around 90. Southeast winds 5 to 15 mph with
gusts to around 30 mph.
.SATURDAY NIGHT...Mostly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows 61 to 67. South winds up to
15 mph.
.SUNDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs 90 to 96. West winds up to 10 mph.
.SUNDAY NIGHT...Partly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows 57 to 63. West winds 5 to
15 mph.
.MONDAY...Not as warm. Sunny. Highs in the lower 80s.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly clear. Lows in the
upper 50s. Highs in the mid 80s.
.WEDNESDAY...Mostly sunny. Highs in the upper 80s.
.WEDNESDAY NIGHT...Partly cloudy. Slight chance of thunderstorms
in the evening, then slight chance of rain showers after
midnight. Lows 57 to 63. Chance of precipitation 20 percent.
.THURSDAY...Mostly sunny. Highs in the mid 80s.
.THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows 53 to 59.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
&&
TEMPERATURE / PRECIPITATION
Lewistown 58 89 59 90 / 10 20 20 30
$$
MTZ315-221000-
Upper Blackfoot and MacDonald Pass-
Including the cities of Marysville, Lincoln, Flesher Pass,
and MacDonald Pass
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy early in the evening then becoming
mostly cloudy. A 20 percent chance of rain showers after
midnight. Lows 56 to 64. Northeast winds up to 10 mph.
.SATURDAY...Mostly cloudy. Slight chance of rain showers in the
morning, then slight chance of thunderstorms in the afternoon.
Highs 77 to 87. Southwest winds up to 10 mph. Chance of
precipitation 20 percent.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows 52 to 60. Southwest winds up to 10 mph.
.SUNDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs 71 to 81. Southwest winds up to 10 mph
shifting to the west with gusts to around 30 mph in the
afternoon.
.SUNDAY NIGHT...Cooler. Mostly clear. Lows 46 to 54. West winds
5 to 15 mph. Gusts up to 30 mph in the evening.
.MONDAY...Sunny. Highs 71 to 81.
.MONDAY NIGHT...Partly cloudy. Lows 48 to 56.
.TUESDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs 74 to 82.
.TUESDAY NIGHT...Partly cloudy. Lows 51 to 57.
.WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms
in the afternoon. Highs 73 to 81.
.WEDNESDAY NIGHT...Partly cloudy. Lows 49 to 55.
.THURSDAY...Mostly sunny. A 20 percent chance of rain showers in
the afternoon. Highs 68 to 78.
.THURSDAY NIGHT...Partly cloudy. Lows 47 to 53.
.FRIDAY...Sunny. Highs 69 to 77.
$$
MTZ316-221000-
Gates of the Mountains-
Including the cities of Canyon Creek, Wolf Creek, and Craig
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy early in the evening then becoming
mostly cloudy. A 20 percent chance of rain showers after
midnight. Lows in the lower 60s. North winds 5 to 10 mph shifting
to the west after midnight. Gusts up to 25 mph.
.SATURDAY...Mostly cloudy. Slight chance of rain showers in the
morning, then slight chance of thunderstorms in the afternoon.
Highs 83 to 91. South winds up to 10 mph. Chance of precipitation
20 percent.
.SATURDAY NIGHT...Mostly cloudy with chance of rain showers and
slight chance of thunderstorms in the evening, then partly cloudy
after midnight. Lows around 60. Southwest winds 5 to 10 mph.
Chance of precipitation 50 percent.
.SUNDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs 80 to 88. Southwest winds 5 to 15 mph. Gusts
up to 35 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. West winds
10 to 15 mph with gusts to around 30 mph shifting to the
southwest after midnight.
.MONDAY...Sunny. Highs 77 to 85.
.MONDAY NIGHT...Mostly clear. Lows in the mid 50s.
.TUESDAY...Mostly sunny. A 20 percent chance of rain showers in
the afternoon. Highs 79 to 87.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows in
the mid 50s. Highs 80 to 88.
.THURSDAY...Sunny. A 20 percent chance of rain showers in the
afternoon. Highs 75 to 83.
.THURSDAY NIGHT...Partly cloudy. A 20 percent chance of rain
showers in the evening. Lows in the lower 50s.
.FRIDAY...Sunny. A 20 percent chance of rain showers in the
afternoon. Highs 76 to 82.
$$
MTZ317-221000-
Little Belt and Highwood Mountains-
Including the cities of Monarch, Neihart, and Kings Hill Pass
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy early in the evening then becoming
mostly cloudy. Lows 56 to 64. Southeast winds 5 to 15 mph with
gusts to around 35 mph.
.SATURDAY...Partly sunny. Slight chance of rain showers in the
morning, then slight chance of thunderstorms in the afternoon.
Highs 77 to 85. South winds 5 to 10 mph with gusts to around
25 mph. Chance of precipitation 20 percent.
.SATURDAY NIGHT...Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms in the evening. Lows 55 to 63.
South winds 5 to 10 mph with gusts to around 25 mph. Chance of
precipitation 50 percent.
.SUNDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs 75 to 83. Southwest winds 5 to 15 mph. Gusts
up to 35 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows 50 to 56. West winds up to
15 mph. Gusts up to 30 mph in the evening.
.MONDAY...Sunny. Highs 71 to 79.
.MONDAY NIGHT...Partly cloudy. Lows 49 to 55.
.TUESDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs 72 to 80.
.TUESDAY NIGHT...Mostly clear. Lows 51 to 59.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. A 20 percent
chance of thunderstorms. Highs 74 to 82. Lows 50 to 58.
.THURSDAY...Mostly sunny. Highs 70 to 78.
.THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows 48 to 54.
.FRIDAY...Sunny. A 20 percent chance of rain showers in the
afternoon. Highs 70 to 78.
$$
MTZ318-221000-
Snowy and Judith Mountains-
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy early in the evening then becoming
mostly cloudy. Lows 56 to 62. Southeast winds 5 to 15 mph. Gusts
up to 30 mph increasing to 40 mph after midnight.
.SATURDAY...Mostly sunny with a 20 percent chance of rain showers
in the morning, then mostly cloudy in the afternoon. Highs 77 to
85. Southeast winds 5 to 15 mph with gusts to around 30 mph.
.SATURDAY NIGHT...Mostly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows 58 to 64. South winds 5 to
10 mph with gusts to around 25 mph.
.SUNDAY...Mostly sunny. Chance of rain showers and slight chance
of thunderstorms in the afternoon. Highs 80 to 88. West winds up
to 10 mph with gusts to around 25 mph. Chance of precipitation
40 percent.
.SUNDAY NIGHT...Partly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows in the mid 50s. West winds
5 to 15 mph.
.MONDAY...Sunny. Highs 72 to 80.
.MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows in the lower 50s.
Highs 73 to 81.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 50s.
.WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms
in the afternoon. Highs 76 to 84.
.WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms in the evening. Lows in the mid
50s. Chance of precipitation 30 percent.
.THURSDAY THROUGH FRIDAY...Partly cloudy with a 20 percent chance
of rain showers. Highs 72 to 81. Lows in the lower 50s.
$$
MTZ319-221000-
Helena Valley-
Including the city of Helena
336 PM MDT Fri Aug 21 2026
.TONIGHT...Mostly cloudy then becoming partly cloudy after
midnight then becoming mostly cloudy. A 20 percent chance of
showers after midnight. Lows around 60. North winds up to 10 mph.
.SATURDAY...Cloudy with slight chance of rain showers in the
morning, then partly sunny with chance of rain showers and slight
chance of thunderstorms in the afternoon. Highs around 90.
Southeast winds up to 10 mph. Chance of precipitation 40 percent.
.SATURDAY NIGHT...Cloudy with a 20 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows in the upper 50s. South winds up to 10 mph.
.SUNDAY...Mostly sunny. Chance of rain showers and slight chance
of thunderstorms in the afternoon. Highs in the upper 80s.
Southeast winds up to 5 mph shifting to the southwest 5 to 15 mph
with gusts to around 30 mph in the afternoon. Chance of
precipitation 40 percent.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. West winds
5 to 15 mph shifting to the southwest up to 5 mph after midnight.
.MONDAY...Sunny. Highs in the mid 80s.
.MONDAY NIGHT...Partly cloudy. Lows in the mid 50s.
.TUESDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs in the mid 80s.
.TUESDAY NIGHT...Partly cloudy. Lows in the mid 50s.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. A 20 percent
chance of thunderstorms. Highs in the mid 80s. Lows in the lower
50s.
.THURSDAY...Mostly sunny. A 20 percent chance of rain showers in
the afternoon. Highs in the lower 80s.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s.
.FRIDAY...Sunny. Highs in the lower 80s.
&&
TEMPERATURE / PRECIPITATION
Helena 61 91 58 88 / 20 40 40 30
$$
MTZ320-221000-
Big Belt, Bridger and Castle Mountains-
Including the cities of Trident, Maudlow, Battle Ridge Pass,
Bozeman Pass, and Deep Creek Pass
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy early in the evening then becoming
mostly cloudy. A 20 percent chance of rain showers late in the
night. Lows in the upper 50s. East winds 5 to 15 mph with gusts
to around 40 mph.
.SATURDAY...Mostly cloudy. Slight chance of rain showers in the
morning, then slight chance of thunderstorms in the afternoon.
Highs 75 to 85. South winds up to 10 mph. Chance of precipitation
20 percent.
.SATURDAY NIGHT...Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms in the evening. Lows in the upper
50s. South winds up to 10 mph with gusts to around 25 mph. Chance
of precipitation 50 percent.
.SUNDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs 73 to 83. South winds up to 10 mph with
gusts to around 25 mph shifting to the southwest with gusts to
around 40 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. A 20 percent chance of rain showers
in the evening. Lows in the lower 50s. West winds 5 to 15 mph
with gusts to around 40 mph decreasing to up to 5 mph after
midnight.
.MONDAY...Sunny. Highs 71 to 81.
.MONDAY NIGHT...Mostly clear in the evening then becoming mostly
cloudy. Lows in the lower 50s.
.TUESDAY...Sunny. A 20 percent chance of rain showers in the
afternoon. Highs 72 to 82.
.TUESDAY NIGHT...Partly cloudy. Lows in the mid 50s.
.WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms
in the afternoon. Highs 72 to 82.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows in the mid 50s.
.THURSDAY...Mostly sunny. Highs 70 to 80.
.THURSDAY NIGHT...Partly cloudy. A 20 percent chance of rain
showers in the evening. Lows in the lower 50s.
.FRIDAY...Sunny. A 20 percent chance of rain showers in the
afternoon. Highs 69 to 79.
$$
MTZ321-221000-
Meagher County Valleys-
Including the cities of Martinsdale, Checkerboard, Ringling,
and White Sulphur Springs
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy until early morning then becoming mostly
cloudy. Lows in the mid 50s. East winds 5 to 15 mph with gusts to
around 35 mph.
.SATURDAY...Partly sunny. Slight chance of rain showers in the
morning, then slight chance of thunderstorms in the afternoon.
Highs in the mid 80s. Southeast winds up to 10 mph. Chance of
precipitation 20 percent.
.SATURDAY NIGHT...Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms in the evening. Lows in the mid
50s. South winds up to 10 mph. Chance of precipitation
50 percent.
.SUNDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs in the lower 80s. South winds up to 10 mph
shifting to the southwest with gusts to around 35 mph in the
afternoon.
.SUNDAY NIGHT...Mostly clear. Lows around 50. West winds 5 to
15 mph with gusts to around 35 mph decreasing to up to 5 mph with
gusts to around 20 mph after midnight.
.MONDAY...Sunny. Highs around 80.
.MONDAY NIGHT...Partly cloudy. Lows around 50.
.TUESDAY...Sunny. A 20 percent chance of rain showers in the
afternoon. Highs in the lower 80s.
.TUESDAY NIGHT...Partly cloudy. Lows in the lower 50s.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. A 20 percent
chance of thunderstorms. Highs in the lower 80s. Lows in the
lower 50s.
.THURSDAY...Sunny. Highs in the upper 70s.
.THURSDAY NIGHT...Partly cloudy. A 20 percent chance of rain
showers in the evening. Lows in the upper 40s.
.FRIDAY...Sunny. A 20 percent chance of rain showers in the
afternoon. Highs in the upper 70s.
$$
MTZ322-221000-
Elkhorn and Boulder Mountains-
Including the cities of Montana City, Clancy, Boulder, Corbin,
Wickes, Elk Park Pass, and Homestake Pass
336 PM MDT Fri Aug 21 2026
.TONIGHT...Mostly cloudy. Slight chance of thunderstorms late in
the evening. Slight chance of rain showers after midnight. Lows
56 to 64. Northeast winds up to 10 mph shifting to the southeast
after midnight. Gusts up to 25 mph. Chance of precipitation
20 percent.
.SATURDAY...Cloudy with slight chance of rain showers in the
morning, then partly sunny with chance of thunderstorms in the
afternoon. Highs 76 to 86. South winds up to 10 mph. Chance of
precipitation 50 percent.
.SATURDAY NIGHT...Cloudy with chance of rain showers and slight
chance of thunderstorms in the evening, then partly cloudy after
midnight. Lows 51 to 59. Southwest winds up to 10 mph. Chance of
precipitation 50 percent.
.SUNDAY...Mostly sunny. Chance of rain showers and slight chance
of thunderstorms in the afternoon. Highs 73 to 83. Southwest
winds up to 10 mph increasing to 10 to 15 mph with gusts to
around 35 mph in the afternoon. Chance of precipitation
40 percent.
.SUNDAY NIGHT...Mostly clear. Lows 46 to 54. West winds up to
15 mph. Gusts up to 30 mph in the evening.
.MONDAY...Sunny. Highs 71 to 81.
.MONDAY NIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows 49 to 57.
.TUESDAY...Mostly sunny. Slight chance of rain showers in the
morning, then slight chance of thunderstorms in the afternoon.
Highs 73 to 81. Chance of precipitation 20 percent.
.TUESDAY NIGHT...Partly cloudy. Lows 51 to 57.
.WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms
in the afternoon. Highs 73 to 81.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows 48 to 56.
.THURSDAY AND THURSDAY NIGHT...Partly cloudy. A 20 percent chance
of rain showers. Highs 69 to 79. Lows 45 to 53.
.FRIDAY...Sunny. A 20 percent chance of rain showers in the
afternoon. Highs 69 to 77.
$$
MTZ323-221000-
Canyon Ferry Area-
Including the cities of Toston, Townsend, and Winston
336 PM MDT Fri Aug 21 2026
.TONIGHT...Mostly cloudy then becoming partly cloudy late in the
evening then becoming mostly cloudy. A 20 percent chance of rain
showers after midnight. Lows in the lower 60s. North winds up to
10 mph shifting to the southeast after midnight. Gusts up to
30 mph.
.SATURDAY...Mostly cloudy. Slight chance of rain showers in the
morning, then chance of rain showers and slight chance of
thunderstorms in the afternoon. Highs in the upper 80s. Southeast
winds up to 10 mph. Chance of precipitation 40 percent.
.SATURDAY NIGHT...Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms in the evening. Lows in the upper
50s. South winds up to 10 mph. Chance of precipitation
50 percent.
.SUNDAY...Mostly sunny. Chance of rain showers and slight chance
of thunderstorms in the afternoon. Highs in the mid 80s. South
winds up to 10 mph shifting to the southwest with gusts to around
35 mph in the afternoon. Chance of precipitation 40 percent.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. Northwest
winds up to 10 mph. Gusts up to 25 mph in the evening.
.MONDAY...Sunny. Highs in the lower 80s.
.MONDAY NIGHT...Mostly clear in the evening then becoming mostly
cloudy. Lows in the mid 50s.
.TUESDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs in the lower 80s.
.TUESDAY NIGHT...Partly cloudy. Lows 53 to 59.
.WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms
in the afternoon. Highs in the mid 80s.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows in the mid 50s.
.THURSDAY...Sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s.
.FRIDAY...Sunny. Highs around 80.
$$
MTZ324-221000-
Missouri Headwaters-
Including the cities of Harrison, Three Forks, Willow Creek,
Pony, and Whitehall
336 PM MDT Fri Aug 21 2026
.TONIGHT...Mostly cloudy. Slight chance of thunderstorms late in
the evening. Slight chance of showers after midnight. Lows around
60. Northeast winds up to 10 mph with gusts to around 35 mph.
Chance of precipitation 20 percent.
.SATURDAY...Cloudy with slight chance of rain showers in the
morning, then partly sunny with chance of thunderstorms in the
afternoon. Highs in the upper 80s. Southwest winds up to 5 mph
shifting to the southeast in the afternoon. Chance of
precipitation 40 percent.
.SATURDAY NIGHT...Cloudy with a 50 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows in the mid 50s. Southwest winds up to 10 mph.
.SUNDAY...Mostly sunny. Chance of rain showers and slight chance
of thunderstorms in the afternoon. Highs in the mid 80s.
Southwest winds up to 5 mph with gusts to around 20 mph
increasing to 10 to 15 mph with gusts to around 35 mph in the
afternoon. Chance of precipitation 30 percent.
.SUNDAY NIGHT...Partly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows in the lower 50s. West winds
5 to 15 mph with gusts to around 30 mph decreasing to up to 5 mph
after midnight.
.MONDAY...Sunny. Highs in the mid 80s.
.MONDAY NIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows in the mid 50s.
.TUESDAY...Mostly sunny. Slight chance of rain showers in the
morning, then slight chance of thunderstorms in the afternoon.
Highs in the mid 80s. Chance of precipitation 20 percent.
.TUESDAY NIGHT...Partly cloudy. A 20 percent chance of rain
showers in the evening. Lows in the mid 50s.
.WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms
in the afternoon. Highs in the mid 80s.
.WEDNESDAY NIGHT...Mostly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows in the lower 50s.
.THURSDAY...Mostly sunny. A 20 percent chance of rain showers in
the afternoon. Highs in the lower 80s.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows in the lower
50s. Highs in the lower 80s.
$$
MTZ325-221000-
Madison River Valley-
Including the cities of Cameron, Ennis, Jeffers, McAllister,
and Norris
336 PM MDT Fri Aug 21 2026
.TONIGHT...Mostly cloudy. Slight chance of thunderstorms late in
the evening. Slight chance of rain showers after midnight. Lows
around 60. North winds 5 to 10 mph shifting to the south after
midnight. Chance of precipitation 20 percent.
.SATURDAY...Cloudy with slight chance of rain showers in the
morning, then partly sunny with chance of thunderstorms in the
afternoon. Highs in the mid 80s. South winds up to 10 mph. Chance
of precipitation 40 percent.
.SATURDAY NIGHT...Cloudy with a 50 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows 52 to 58. South winds 5 to 10 mph.
.SUNDAY...Breezy. Partly sunny. A 50 percent chance of
thunderstorms in the afternoon. Highs in the mid 80s. South winds
5 to 15 mph shifting to the southwest 10 to 25 mph in the
afternoon.
.SUNDAY NIGHT...Partly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows 48 to 54. Southwest winds
10 to 20 mph becoming south up to 10 mph after midnight.
.MONDAY...Sunny. Highs in the lower 80s.
.MONDAY NIGHT...Mostly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows 50 to 56.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with a 20 percent
chance of thunderstorms. Highs in the lower 80s. Lows 50 to 56.
.WEDNESDAY NIGHT...Mostly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows 49 to 55.
.THURSDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs in the lower 80s.
.THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain
showers in the evening, then partly cloudy after midnight. Lows
47 to 53.
.FRIDAY...Mostly sunny. Highs around 80.
$$
MTZ326-221000-
Gallatin Valley-
Including the cities of Bozeman and Gallatin Gateway
336 PM MDT Fri Aug 21 2026
.TONIGHT...Partly cloudy early in the evening, then mostly cloudy
with slight chance of thunderstorms late in the evening. Mostly
cloudy with slight chance of rain showers after midnight. Lows in
the upper 50s. East winds 5 to 10 mph with gusts to around
40 mph. Chance of precipitation 20 percent.
.SATURDAY...Mostly cloudy. Slight chance of rain showers in the
morning, then chance of thunderstorms in the afternoon. Highs in
the upper 80s. Southeast winds up to 5 mph. Chance of
precipitation 40 percent.
.SATURDAY NIGHT...Mostly cloudy. A 50 percent chance of
thunderstorms in the evening. Lows in the mid 50s. South winds up
to 10 mph.
.SUNDAY...Mostly sunny. Chance of rain showers and slight chance
of thunderstorms in the afternoon. Highs in the mid 80s.
Southeast winds up to 5 mph shifting to the southwest 5 to 15 mph
with gusts to around 30 mph in the afternoon. Chance of
precipitation 40 percent.
.SUNDAY NIGHT...Partly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows in the lower 50s. Southwest
winds 5 to 15 mph shifting to the south up to 5 mph after
midnight.
.MONDAY...Sunny. Highs in the lower 80s.
.MONDAY NIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows in the lower 50s.
.TUESDAY...Sunny. Slight chance of rain showers in the morning,
then slight chance of thunderstorms in the afternoon. Highs in
the lower 80s. Chance of precipitation 20 percent.
.TUESDAY NIGHT...Partly cloudy. A 20 percent chance of rain
showers in the evening. Lows in the mid 50s.
.WEDNESDAY...Mostly sunny. Highs in the mid 80s.
.WEDNESDAY NIGHT...Mostly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows in the lower 50s.
.THURSDAY...Mostly sunny. Highs in the lower 80s.
.THURSDAY NIGHT...Partly cloudy. A 20 percent chance of rain
showers in the evening. Lows in the lower 50s.
.FRIDAY...Mostly sunny. Highs in the lower 80s.
&&
TEMPERATURE / PRECIPITATION
Bozeman Airport 59 88 54 87 / 20 30 50 30
Bozeman MSU 59 87 56 85 / 20 40 60 40
$$
MTZ330-221000-
Gallatin and Madison County Mountains and Centennial Mountains-
Including the cities of Big Sky, West Yellowstone, Targhee Pass,
and Raynolds Pass
336 PM MDT Fri Aug 21 2026
.TONIGHT...Mostly cloudy. Slight chance of thunderstorms in the
evening, then slight chance of rain showers after midnight. Lows
54 to 60. Northeast winds 5 to 10 mph shifting to the southeast
after midnight. Gusts up to 30 mph. Chance of precipitation
20 percent.
.SATURDAY...Mostly cloudy. Slight chance of rain showers in the
morning, then chance of thunderstorms in the afternoon. Highs
70 to 80. South winds 5 to 15 mph. Chance of precipitation
50 percent.
.SATURDAY NIGHT...Mostly cloudy. A 50 percent chance of
thunderstorms in the evening. Lows 49 to 55. Southwest winds 5 to
10 mph shifting to the south after midnight.
.SUNDAY...Partly sunny. A 50 percent chance of thunderstorms in
the afternoon. Highs 68 to 78. South winds 5 to 10 mph with gusts
to around 25 mph shifting to the southwest 10 to 20 mph with
gusts to around 40 mph in the afternoon.
.SUNDAY NIGHT...Partly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows 46 to 52. Southwest winds
10 to 15 mph with gusts to around 35 mph decreasing to up to
10 mph after midnight.
.MONDAY...Sunny. Highs 68 to 78.
.MONDAY NIGHT...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms in the evening. Lows 47 to 53. Chance of
precipitation 40 percent.
.TUESDAY...Mostly sunny. Slight chance of rain showers in the
morning, then chance of rain showers and slight chance of
thunderstorms in the afternoon. Highs 67 to 77. Chance of
precipitation 40 percent.
.TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows 48 to 54.
.WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms
in the afternoon. Highs 68 to 78.
.WEDNESDAY NIGHT...Mostly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows 46 to 52.
.THURSDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs 66 to 76.
.THURSDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. A 20 percent chance of rain showers. Lows 45 to
51.
.FRIDAY...Mostly sunny. Highs 65 to 75.
&&
TEMPERATURE / PRECIPITATION
West Yellowstone 52 81 46 79 / 20 30 40 30
$$
MTZ327-221000-
Northwest Beaverhead County-
Including the cities of Dewey, Wisdom, Wise River, Big Hole Pass,
and Chief Joseph Pass
336 PM MDT Fri Aug 21 2026
.TONIGHT...Mostly cloudy. Patchy smoke early in the evening.
Slight chance of thunderstorms in the evening, then slight chance
of rain showers after midnight. Lows 52 to 60. Northeast winds up
to 10 mph shifting to the south after midnight. Gusts up to
25 mph. Chance of precipitation 20 percent.
.SATURDAY...Cloudy with slight chance of rain showers in the
morning, then partly sunny with chance of thunderstorms in the
afternoon. Highs 73 to 83. Southwest winds up to 10 mph. Chance
of precipitation 50 percent.
.SATURDAY NIGHT...Cooler. Mostly cloudy. A 50 percent chance of
thunderstorms in the evening. Patchy smoke in the evening. Lows
46 to 54. Southwest winds up to 10 mph.
.SUNDAY...Breezy. Mostly sunny. A 20 percent chance of
thunderstorms in the afternoon. Highs 70 to 80. South winds up to
10 mph with gusts to around 25 mph increasing to southwest 10 to
25 mph with gusts to around 40 mph in the afternoon.
.SUNDAY NIGHT...Colder. Mostly clear. Lows 40 to 50. West winds
10 to 15 mph with gusts to around 35 mph decreasing to up to
5 mph after midnight.
.MONDAY...Sunny. Highs 70 to 80.
.MONDAY NIGHT...Mostly cloudy. A 20 percent chance of rain
showers in the evening. Lows 45 to 53.
.TUESDAY...Sunny. Slight chance of rain showers in the morning,
then slight chance of thunderstorms in the afternoon. Highs 70 to
80. Chance of precipitation 20 percent.
.TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain
showers in the evening. Lows 45 to 53.
.WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms
in the afternoon. Highs 69 to 79.
.WEDNESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain
showers in the evening. Lows 42 to 52.
.THURSDAY...Mostly sunny. A 20 percent chance of rain showers in
the afternoon. Highs 67 to 77.
.THURSDAY NIGHT...Partly cloudy. Lows 39 to 49.
.FRIDAY...Sunny. Highs 66 to 76.
$$
MTZ328-221000-
Beaverhead and Western Madison below 6000ft-
Including the cities of Bannack, Dillon, Glen, and Waterloo
336 PM MDT Fri Aug 21 2026
.TONIGHT...Mostly cloudy. Slight chance of thunderstorms in the
evening, then slight chance of rain showers after midnight. Lows
around 60. Northeast winds 5 to 10 mph shifting to the south
after midnight. Gusts up to 25 mph. Chance of precipitation
20 percent.
.SATURDAY...Mostly cloudy. Slight chance of rain showers in the
morning, then chance of thunderstorms in the afternoon. Highs
82 to 88. South winds up to 10 mph. Chance of precipitation
50 percent.
.SATURDAY NIGHT...Mostly cloudy. A 50 percent chance of
thunderstorms in the evening. Lows in the mid 50s. Southwest
winds up to 10 mph.
.SUNDAY...Breezy. Mostly sunny. A 20 percent chance of
thunderstorms in the afternoon. Highs 80 to 86. South winds up to
10 mph increasing to southwest 10 to 25 mph with gusts to around
40 mph in the afternoon.
.SUNDAY NIGHT...Partly cloudy. Lows around 50. West winds 10 to
15 mph with gusts to around 35 mph shifting to the southwest
after midnight.
.MONDAY...Sunny. Highs 79 to 85.
.MONDAY NIGHT...Mostly cloudy. A 20 percent chance of rain
showers in the evening. Lows in the lower 50s.
.TUESDAY...Mostly sunny. Slight chance of rain showers in the
morning, then slight chance of thunderstorms in the afternoon.
Highs 79 to 85. Chance of precipitation 20 percent.
.TUESDAY NIGHT...Partly cloudy. A 20 percent chance of rain
showers in the evening. Lows in the lower 50s.
.WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms
in the afternoon. Highs 79 to 85.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain
showers in the evening, then partly cloudy after midnight. Lows
in the lower 50s.
.THURSDAY...Mostly sunny. A 20 percent chance of rain showers in
the afternoon. Highs 77 to 83.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows in the upper
40s. Highs 76 to 82.
&&
TEMPERATURE / PRECIPITATION
Dillon 58 86 52 85 / 30 40 40 20
$$
MTZ329-221000-
Ruby Mountains and Southern Beaverhead Mountains-
Including the city of Monida Pass
336 PM MDT Fri Aug 21 2026
.TONIGHT...Mostly cloudy. Slight chance of thunderstorms in the
evening, then slight chance of rain showers after midnight. Lows
in the upper 50s. East winds 5 to 10 mph shifting to the
southeast with gusts to around 30 mph after midnight. Chance of
precipitation 20 percent.
.SATURDAY...Mostly cloudy. Slight chance of rain showers in the
morning, then chance of thunderstorms in the afternoon. Highs
74 to 82. South winds 5 to 15 mph with gusts to around 30 mph.
Chance of precipitation 50 percent.
.SATURDAY NIGHT...Mostly cloudy. A 50 percent chance of
thunderstorms in the evening. Lows in the mid 50s. Southwest
winds 5 to 10 mph shifting to the south after midnight.
.SUNDAY...Breezy. Partly sunny. Chance of rain showers and slight
chance of thunderstorms in the afternoon. Highs 72 to 80. South
winds 5 to 10 mph with gusts to around 25 mph increasing to
southwest 15 to 25 mph in the afternoon. Chance of precipitation
50 percent.
.SUNDAY NIGHT...Partly cloudy. Lows around 50. Southwest winds
10 to 15 mph with gusts to around 35 mph decreasing to up to
10 mph after midnight.
.MONDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs 71 to 79.
.MONDAY NIGHT...Mostly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows in the lower 50s.
.TUESDAY...Mostly sunny. A 20 percent chance of thunderstorms in
the afternoon. Highs 71 to 79.
.TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain
showers in the evening. Lows in the lower 50s.
.WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms
in the afternoon. Highs 71 to 79.
.WEDNESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain
showers in the evening. Lows around 50.
.THURSDAY AND THURSDAY NIGHT...Partly cloudy. A 20 percent chance
of rain showers. Highs 69 to 77. Lows in the upper 40s.
.FRIDAY...Mostly sunny. Highs 69 to 77.
$$