Zone Forecast Product
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
140
FPUS55 KTFX 170937
ZFPTFX
Zone Forecast Product for Central and Southwest Montana
National Weather Service Great Falls MT
336 AM MDT Thu Sep 17 2026
Spot temperatures and probabilities of measurable precipitation
are for today, tonight, and Friday.
MTZ301-172200-
East Glacier Park Region-
Including the cities of East Glacier Park, Kiowa, Babb,
Saint Mary, Marias Pass, and Logan Pass
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer, sunny. Highs 61 to 69. Southwest winds up to
5 mph shifting to the east in the afternoon.
.TONIGHT...Mostly cloudy with a 20 percent chance of rain
showers. Lows in the mid 40s. East winds up to 5 mph shifting to
the southwest after midnight.
.FRIDAY...Partly sunny. A 20 percent chance of rain showers in
the afternoon. Highs 57 to 65. West winds up to 5 mph shifting to
the northeast in the afternoon.
.FRIDAY NIGHT...Mostly cloudy. A 20 percent chance of rain
showers in the evening. Lows in the mid 40s. Northeast winds up
to 10 mph shifting to the northwest after midnight.
.SATURDAY...Mostly sunny. Highs 57 to 67. West winds up to 5 mph
shifting to the south in the afternoon.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows in the mid
40s. Highs 58 to 70.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows in the mid
40s. Highs 56 to 66.
$$
MTZ307-172200-
Southern Rocky Mountain Front-
Including the city of Rogers Pass
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer. Mostly sunny. Highs 63 to 73. South winds up to
5 mph shifting to the southeast in the afternoon.
.TONIGHT...Mostly cloudy with chance of rain showers and slight
chance of thunderstorms in the evening, then partly cloudy after
midnight. Lows in the mid 40s. Southeast winds up to 5 mph
shifting to the west after midnight. Chance of precipitation
50 percent.
.FRIDAY...Partly sunny in the morning, then cloudy with chance of
rain showers and slight chance of thunderstorms in the afternoon.
Highs 59 to 67. West winds up to 5 mph shifting to the northeast
in the afternoon. Chance of precipitation 50 percent.
.FRIDAY NIGHT...Mostly cloudy. Rain showers and slight chance of
thunderstorms in the evening, then chance of rain after midnight.
Lows in the mid 40s. North winds up to 10 mph. Chance of
precipitation 80 percent.
.SATURDAY...Partly sunny with a 50 percent chance of rain. Highs
55 to 63. North winds up to 5 mph shifting to the northeast in
the afternoon.
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 40s.
.SUNDAY THROUGH TUESDAY...Mostly clear. Highs 59 to 72. Lows in
the mid 40s.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows in the mid
40s. Highs 59 to 69.
$$
MTZ302-172200-
Northern High Plains-
Including the cities of Browning, Heart Butte, and Dupuyer
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer, sunny. Highs in the upper 60s. South winds up to
5 mph shifting to the east in the afternoon.
.TONIGHT...Partly cloudy in the evening, then mostly cloudy with
a 20 percent chance of rain showers after midnight. Lows in the
upper 40s. Southeast winds up to 5 mph shifting to the west after
midnight.
.FRIDAY...Partly sunny. Highs in the upper 60s. Northwest winds
up to 5 mph shifting to the north in the afternoon.
.FRIDAY NIGHT...Mostly cloudy. A 20 percent chance of rain
showers in the evening. Lows in the mid 40s. Northeast winds up
to 10 mph shifting to the northwest after midnight.
.SATURDAY...Mostly sunny. Highs in the upper 60s. West winds up
to 5 mph shifting to the southeast in the afternoon.
.SATURDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows in the
upper 40s. Highs in the lower 70s.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Highs in the lower
70s. Lows in the mid 40s.
$$
MTZ308-172200-
Southern High Plains-
Including the cities of Bynum, Choteau, and Pendroy
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer. Mostly sunny. Highs in the lower 70s. South
winds up to 5 mph shifting to the east in the afternoon.
.TONIGHT...Mostly cloudy with chance of rain showers and slight
chance of thunderstorms in the evening, then partly cloudy with
slight chance of rain showers after midnight. Lows around 50.
Northeast winds up to 5 mph shifting to the west after midnight.
Chance of precipitation 50 percent.
.FRIDAY...Mostly sunny in the morning, then mostly cloudy with a
20 percent chance of thunderstorms in the afternoon. Highs around
70. Northwest winds up to 5 mph shifting to the north in the
afternoon.
.FRIDAY NIGHT...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms in the evening, then chance of rain after
midnight. Lows around 50. Northwest winds up to 10 mph. Chance of
precipitation 50 percent.
.SATURDAY...Partly sunny with a 50 percent chance of rain. Highs
in the upper 60s. Northwest winds up to 5 mph shifting to the
east in the afternoon.
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s.
.SUNDAY THROUGH TUESDAY...Mostly clear. Highs in the mid 70s.
Lows in the upper 40s.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows in the upper
40s. Highs in the mid 70s.
$$
MTZ303-172200-
Eastern Glacier, Western Toole, and Central Pondera-
Including the cities of Cut Bank, Ethridge, and Santa Rita
336 AM MDT Thu Sep 17 2026
.TODAY...Sunny. Highs in the upper 60s. Southeast winds up to
10 mph. Gusts up to 20 mph in the morning.
.TONIGHT...Partly cloudy in the evening, then mostly cloudy with
a 20 percent chance of rain showers after midnight. Lows in the
upper 40s. East winds up to 5 mph shifting to the northwest after
midnight.
.FRIDAY...Partly sunny. Highs in the upper 60s. North winds 5 to
10 mph.
.FRIDAY NIGHT...Mostly cloudy. Lows in the mid 40s. North winds
up to 10 mph.
.SATURDAY...Mostly sunny. Highs in the upper 60s. Northwest winds
up to 5 mph shifting to the southeast in the afternoon.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows in the upper
40s. Highs in the mid 70s.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows in the mid
40s. Highs in the lower 70s.
&&
TEMPERATURE / PRECIPITATION
Cut Bank 69 47 69 / 0 20 10
$$
MTZ304-172200-
Eastern Toole and Liberty-
Including the cities of Devon, Shelby, Chester, Galata, Joplin,
Lothair, and Whitlash
336 AM MDT Thu Sep 17 2026
.TODAY...Sunny. Highs in the lower 70s. Southeast winds 5 to
10 mph with gusts to around 25 mph.
.TONIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Lows in the upper 40s. East winds up to 10 mph shifting
to the north after midnight.
.FRIDAY...Partly sunny. Highs 68 to 74. North winds up to 10 mph.
.FRIDAY NIGHT...Mostly cloudy. Lows in the upper 40s. North winds
up to 10 mph.
.SATURDAY...Mostly sunny. A 20 percent chance of rain in the
afternoon. Highs in the upper 60s. East winds up to 10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 40s.
.SUNDAY...Sunny. Highs in the lower 70s.
.SUNDAY NIGHT...Clear. Lows in the upper 40s.
.MONDAY THROUGH TUESDAY NIGHT...Mostly clear. Highs in the mid
70s. Lows in the upper 40s.
.WEDNESDAY...Mostly sunny. Highs 71 to 77.
$$
MTZ305-172200-
Hill County-
Including the city of Havre
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer, sunny. Highs in the mid 70s. East winds up to
10 mph with gusts to around 25 mph.
.TONIGHT...Mostly cloudy. Lows in the upper 40s. Northeast winds
up to 10 mph.
.FRIDAY...Partly sunny. Highs in the mid 70s. North winds up to
10 mph.
.FRIDAY NIGHT...Mostly cloudy. Lows in the upper 40s. Northeast
winds 5 to 10 mph.
.SATURDAY...Partly sunny with a 20 percent chance of rain. Highs
around 70. Northeast winds up to 10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 40s.
.SUNDAY THROUGH TUESDAY NIGHT...Mostly clear. Highs in the mid
70s. Lows in the upper 40s.
.WEDNESDAY...Mostly sunny. Highs in the upper 70s.
&&
TEMPERATURE / PRECIPITATION
Havre 78 49 77 / 0 10 0
$$
MTZ306-172200-
Northern Blaine County-
Including the cities of Chinook, Zurich, Harlem, Hogeland,
and Fort Belknap
336 AM MDT Thu Sep 17 2026
.TODAY...Sunny. Highs in the lower 70s. Southeast winds 10 to
20 mph.
.TONIGHT...Mostly cloudy. Lows in the upper 40s. East winds 10 to
15 mph decreasing to up to 10 mph after midnight.
.FRIDAY...Partly sunny. Highs in the mid 70s. North winds up to
10 mph.
.FRIDAY NIGHT...Mostly cloudy. A 20 percent chance of rain after
midnight. Lows in the upper 40s. Northeast winds 5 to 15 mph.
.SATURDAY...Partly sunny. Slight chance of rain in the morning,
then chance of rain in the afternoon. Highs in the upper 60s.
Northeast winds 5 to 15 mph. Chance of rain 40 percent.
.SATURDAY NIGHT...Mostly cloudy. A 50 percent chance of rain in
the evening. Lows in the mid 40s.
.SUNDAY...Mostly sunny. Highs in the lower 70s.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s.
.MONDAY...Mostly sunny. Highs in the mid 70s.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly clear. Lows in the
upper 40s. Highs in the upper 70s.
.WEDNESDAY...Mostly sunny. Highs in the upper 70s.
$$
MTZ309-172200-
Eastern Pondera and Eastern Teton-
Including the cities of Brady, Conrad, and Ledger
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer, sunny. Patchy fog early in the morning. Highs in
the lower 70s. South winds up to 5 mph shifting to the east in
the afternoon.
.TONIGHT...Mostly cloudy in the evening then becoming partly
cloudy. A 20 percent chance of rain showers. Lows in the upper
40s. Northeast winds up to 5 mph shifting to the northwest after
midnight.
.FRIDAY...Partly sunny. Highs in the lower 70s. Northwest winds
up to 10 mph.
.FRIDAY NIGHT...Mostly cloudy. Chance of rain showers in the
evening, then chance of rain after midnight. Lows in the upper
40s. North winds up to 10 mph. Chance of precipitation
50 percent.
.SATURDAY...Partly sunny. Chance of rain in the morning, then
slight chance of rain in the afternoon. Highs in the upper 60s.
North winds up to 5 mph shifting to the east around 5 mph in the
afternoon. Chance of rain 40 percent.
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 40s.
.SUNDAY THROUGH TUESDAY...Mostly clear. Highs in the upper 70s.
Lows in the upper 40s.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows in the upper
40s. Highs in the upper 70s.
$$
MTZ310-172200-
Western and Central Chouteau County-
Including the cities of Floweree, Carter, and Fort Benton
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer, sunny. Highs in the mid 70s. East winds up to
10 mph with gusts to around 25 mph.
.TONIGHT...Mostly cloudy in the evening then becoming partly
cloudy. Lows in the lower 50s. East winds up to 10 mph shifting
to the west after midnight.
.FRIDAY...Mostly sunny. Highs in the mid 70s. Northwest winds up
to 10 mph.
.FRIDAY NIGHT...Cloudy. Chance of rain showers in the evening,
then chance of rain after midnight. Lows in the lower 50s. North
winds up to 10 mph. Chance of precipitation 50 percent.
.SATURDAY...Partly sunny. Chance of rain in the morning, then
slight chance of rain in the afternoon. Highs in the upper 60s.
North winds up to 10 mph. Chance of rain 50 percent.
.SATURDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. Lows in the upper 40s.
.SUNDAY AND SUNDAY NIGHT...Mostly clear. Highs in the mid 70s.
Lows in the upper 40s.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Highs in the upper 70s.
Lows around 50.
$$
MTZ311-172200-
Bears Paw Mountains and Southern Blaine-
Including the city of Rocky Boy
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer, sunny. Highs 70 to 76. Southeast winds 5 to
15 mph with gusts to around 30 mph.
.TONIGHT...Mostly cloudy. Lows in the lower 50s. Southeast winds
up to 10 mph. Gusts up to 25 mph in the evening.
.FRIDAY...Mostly sunny. Highs 71 to 77. Northwest winds up to
10 mph.
.FRIDAY NIGHT...Mostly cloudy. Slight chance of rain showers in
the evening, then chance of rain after midnight. Lows in the
lower 50s. Northeast winds up to 10 mph. Chance of precipitation
50 percent.
.SATURDAY...Mostly cloudy with a 50 percent chance of rain. Highs
64 to 70. Northeast winds up to 10 mph.
.SATURDAY NIGHT...Mostly cloudy. Chance of rain in the evening,
then slight chance of rain after midnight. Lows in the upper 40s.
Chance of rain 50 percent.
.SUNDAY...Partly sunny in the morning then clearing. Highs 68 to
74.
.SUNDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows around 50.
Highs 73 to 80.
$$
MTZ312-172200-
Cascade County below 5000ft-
Including the city of Great Falls
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer. Mostly sunny. Highs in the mid 70s. South winds
up to 5 mph shifting to the northeast in the afternoon.
.TONIGHT...Mostly cloudy with a 20 percent chance of rain showers
in the evening, then partly cloudy after midnight. Lows around
50. Northeast winds up to 10 mph shifting to the southwest after
midnight.
.FRIDAY...Partly sunny. A 20 percent chance of rain showers in
the afternoon. Highs in the lower 70s. West winds up to 5 mph
shifting to the north in the afternoon.
.FRIDAY NIGHT...Cloudy. Chance of rain showers and slight chance
of thunderstorms in the evening, then rain likely after midnight.
Lows in the lower 50s. Northeast winds up to 10 mph shifting to
the northwest after midnight. Chance of precipitation 70 percent.
.SATURDAY...Mostly cloudy with a 50 percent chance of rain. Highs
in the upper 60s. Northwest winds up to 5 mph shifting to the
north in the afternoon.
.SATURDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. Lows in the upper 40s.
.SUNDAY...Sunny. Highs in the mid 70s.
.SUNDAY NIGHT AND MONDAY...Clear. Lows in the upper 40s. Highs in
the upper 70s.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly clear. Lows around
50. Highs in the upper 70s.
.WEDNESDAY...Mostly sunny. Highs in the upper 70s.
&&
TEMPERATURE / PRECIPITATION
Great Falls Arpt 74 50 74 / 0 20 20
$$
MTZ313-172200-
Judith Basin County and Judith Gap-
Including the cities of Raynesford, Geyser, Stanford, Windham,
Benchland, Hobson, and Moccasin
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer. Sunny until late afternoon then becoming partly
sunny. Highs in the mid 70s. Southeast winds 5 to 15 mph with
gusts to around 30 mph.
.TONIGHT...Mostly cloudy in the evening then becoming partly
cloudy. Lows around 50. South winds 5 to 15 mph shifting to the
southwest after midnight.
.FRIDAY...Partly sunny. Chance of rain showers and slight chance
of thunderstorms in the afternoon. Highs in the lower 70s. West
winds up to 5 mph shifting to the north with gusts to around
25 mph in the afternoon. Chance of precipitation 50 percent.
.FRIDAY NIGHT...Rain showers likely and slight chance of
thunderstorms in the evening, then rain after midnight. Lows in
the upper 40s. Northwest winds up to 10 mph. Chance of
precipitation 90 percent.
.SATURDAY...Rain in the morning, then rain showers likely and
slight chance of thunderstorms in the afternoon. Highs in the mid
60s. Northwest winds up to 10 mph. Chance of precipitation
90 percent.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of rain.
Lows in the mid 40s.
.SUNDAY AND SUNDAY NIGHT...Mostly clear. Highs in the lower 70s.
Lows in the mid 40s.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Highs in the upper 70s.
Lows in the upper 40s.
$$
MTZ314-172200-
Fergus County below 4500ft-
Including the cities of Hilger and Lewistown
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer, sunny. Highs in the upper 70s. Southeast winds
5 to 15 mph.
.TONIGHT...Mostly cloudy in the evening then becoming partly
cloudy. Lows in the lower 50s. Southeast winds 5 to 10 mph with
gusts to around 25 mph shifting to the southwest after midnight.
.FRIDAY...Mostly sunny. Highs in the mid 70s. Northwest winds
5 to 10 mph.
.FRIDAY NIGHT...Cloudy. Chance of rain showers and slight chance
of thunderstorms in the evening, then rain likely after midnight.
Lows in the lower 50s. North winds up to 10 mph. Chance of
precipitation 70 percent.
.SATURDAY...Rain likely in the morning, then rain showers and
slight chance of thunderstorms in the afternoon. Highs 63 to 69.
North winds 5 to 10 mph with gusts to around 25 mph. Chance of
precipitation 90 percent.
.SATURDAY NIGHT...Mostly cloudy. Rain showers likely and slight
chance of thunderstorms in the evening, then chance of rain after
midnight. Lows in the upper 40s. Chance of precipitation
70 percent.
.SUNDAY...Mostly sunny. A 20 percent chance of rain in the
morning. Highs in the lower 70s.
.SUNDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the upper
40s. Highs in the upper 70s.
&&
TEMPERATURE / PRECIPITATION
Lewistown 78 50 75 / 0 0 30
$$
MTZ315-172200-
Upper Blackfoot and MacDonald Pass-
Including the cities of Marysville, Lincoln, Flesher Pass,
and MacDonald Pass
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer. Partly sunny. A 20 percent chance of
thunderstorms late in the afternoon. Highs 67 to 75. Southeast
winds up to 10 mph.
.TONIGHT...Mostly cloudy with a 50 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows in the upper 40s. South winds up to 10 mph shifting to the
southwest after midnight.
.FRIDAY...Partly sunny in the morning, then cloudy with a
50 percent chance of thunderstorms in the afternoon. Highs 62 to
70. West winds up to 5 mph shifting to the north in the
afternoon.
.FRIDAY NIGHT...Rain showers and slight chance of thunderstorms
in the evening, then rain after midnight. Lows 44 to 50.
Northwest winds up to 10 mph. Chance of precipitation near
100 percent.
.SATURDAY...Mostly cloudy. Rain likely in the morning, then rain
showers likely and slight chance of thunderstorms in the
afternoon. Highs 57 to 65. North winds up to 5 mph. Chance of
precipitation 70 percent.
.SATURDAY NIGHT...Mostly cloudy in the evening then clearing.
Lows in the mid 40s.
.SUNDAY...Sunny. Highs 63 to 71.
.SUNDAY NIGHT...Clear. Lows in the mid 40s.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Highs 65 to 74. Lows in
the mid 40s.
$$
MTZ316-172200-
Gates of the Mountains-
Including the cities of Canyon Creek, Wolf Creek, and Craig
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer. Mostly sunny. Highs 72 to 78. Southeast winds up
to 10 mph.
.TONIGHT...Mostly cloudy with chance of rain showers and slight
chance of thunderstorms in the evening, then partly cloudy after
midnight. Lows around 50. Northeast winds up to 5 mph shifting to
the southwest after midnight. Chance of precipitation 50 percent.
.FRIDAY...Mostly sunny in the morning, then mostly cloudy with
chance of rain showers and slight chance of thunderstorms in the
afternoon. Highs 67 to 73. West winds up to 5 mph shifting to the
north in the afternoon. Chance of precipitation 50 percent.
.FRIDAY NIGHT...Rain showers and slight chance of thunderstorms
in the evening, then rain likely after midnight. Lows in the
lower 50s. Northwest winds up to 10 mph. Chance of precipitation
90 percent.
.SATURDAY...Mostly cloudy. Rain likely in the morning, then
chance of rain in the afternoon. Highs 62 to 68. Northwest winds
up to 5 mph. Chance of rain 70 percent.
.SATURDAY NIGHT...Mostly cloudy in the evening then clearing.
Lows in the upper 40s.
.SUNDAY...Sunny. Highs 69 to 75.
.SUNDAY NIGHT AND MONDAY...Clear. Lows in the upper 40s. Highs
72 to 78.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the upper
40s. Highs 71 to 77.
$$
MTZ317-172200-
Little Belt and Highwood Mountains-
Including the cities of Monarch, Neihart, and Kings Hill Pass
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer. Mostly sunny. Highs 68 to 74. South winds up to
10 mph with gusts to around 25 mph.
.TONIGHT...Mostly cloudy in the evening then becoming partly
cloudy. Lows 46 to 52. South winds up to 10 mph with gusts to
around 25 mph.
.FRIDAY...Mostly sunny in the morning, then mostly cloudy with
chance of rain showers and slight chance of thunderstorms in the
afternoon. Highs 64 to 70. West winds up to 5 mph shifting to the
north with gusts to around 25 mph in the afternoon. Chance of
precipitation 50 percent.
.FRIDAY NIGHT...Rain showers likely and slight chance of
thunderstorms in the evening, then rain after midnight. Lows
44 to 50. North winds up to 10 mph. Gusts up to 25 mph in the
evening. Chance of precipitation 90 percent.
.SATURDAY...Rain in the morning, then rain showers likely and
slight chance of thunderstorms in the afternoon. Highs 54 to 62.
North winds up to 10 mph. Chance of precipitation 90 percent.
.SATURDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. A 20 percent chance of rain. Lows 41 to 47.
.SUNDAY THROUGH WEDNESDAY...Mostly clear. Highs 61 to 74. Lows
42 to 50.
$$
MTZ318-172200-
Snowy and Judith Mountains-
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer. Mostly sunny. Highs 67 to 75. Southeast winds
5 to 15 mph.
.TONIGHT...Mostly cloudy in the evening then becoming partly
cloudy. Lows in the lower 50s. South winds up to 10 mph with
gusts to around 25 mph.
.FRIDAY...Partly sunny. A 50 percent chance of rain showers in
the afternoon. Highs 66 to 74. Northwest winds up to 10 mph.
.FRIDAY NIGHT...Rain showers and slight chance of thunderstorms.
Lows in the upper 40s. Northwest winds up to 10 mph. Chance of
precipitation 90 percent.
.SATURDAY...Cooler. Rain showers and slight chance of
thunderstorms. Highs 54 to 60. North winds 5 to 10 mph with gusts
to around 25 mph. Chance of precipitation 90 percent.
.SATURDAY NIGHT...Mostly cloudy. Rain showers likely and slight
chance of thunderstorms in the evening, then chance of rain after
midnight. Lows in the mid 40s. Chance of precipitation
70 percent.
.SUNDAY...Warmer. Mostly sunny with a 20 percent chance of rain.
Highs 62 to 68.
.SUNDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the upper
40s. Highs 67 to 76.
$$
MTZ319-172200-
Helena Valley-
Including the city of Helena
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer. Partly sunny. A 20 percent chance of rain
showers late in the afternoon. Highs in the upper 70s. Southeast
winds up to 10 mph.
.TONIGHT...Mostly cloudy with chance of rain showers and slight
chance of thunderstorms in the evening, then partly cloudy after
midnight. Lows in the upper 40s. Southeast winds up to 10 mph
shifting to the southwest after midnight. Chance of precipitation
40 percent.
.FRIDAY...Partly sunny in the morning, then cloudy with a
50 percent chance of thunderstorms in the afternoon. Highs in the
mid 70s. Light winds becoming northwest up to 5 mph with gusts to
around 20 mph in the afternoon.
.FRIDAY NIGHT...Rain showers and chance of thunderstorms in the
evening, then rain after midnight. Lows around 50. Northwest
winds up to 10 mph. Chance of precipitation 90 percent.
.SATURDAY...Mostly cloudy. Rain in the morning, then chance of
rain showers and slight chance of thunderstorms in the afternoon.
Highs in the upper 60s. Northwest winds up to 5 mph. Chance of
precipitation 80 percent.
.SATURDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. Lows in the mid 40s.
.SUNDAY...Sunny. Highs in the mid 70s.
.SUNDAY NIGHT AND MONDAY...Clear. Lows in the upper 40s. Highs in
the upper 70s.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the upper
40s. Highs in the upper 70s.
&&
TEMPERATURE / PRECIPITATION
Helena 79 50 75 / 20 40 60
$$
MTZ320-172200-
Big Belt, Bridger and Castle Mountains-
Including the cities of Trident, Maudlow, Battle Ridge Pass,
Bozeman Pass, and Deep Creek Pass
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer. Mostly sunny until late afternoon then becoming
mostly cloudy. A 20 percent chance of rain showers in the
afternoon. Highs 67 to 75. South winds up to 10 mph.
.TONIGHT...Partly cloudy. A 20 percent chance of thunderstorms in
the evening. Lows in the upper 40s. South winds up to 10 mph.
.FRIDAY...Mostly cloudy. Slight chance of rain showers in the
morning, then chance of rain showers and slight chance of
thunderstorms in the afternoon. Highs 63 to 71. Southwest winds
up to 5 mph shifting to the north in the afternoon. Chance of
precipitation 50 percent.
.FRIDAY NIGHT...Rain showers and slight chance of thunderstorms.
Lows in the upper 40s. North winds up to 10 mph. Chance of
precipitation near 100 percent.
.SATURDAY...Rain in the morning, then rain showers and slight
chance of thunderstorms in the afternoon. Highs 54 to 62. North
winds up to 10 mph. Chance of precipitation near 100 percent.
.SATURDAY NIGHT...Mostly cloudy. A 50 percent chance of rain in
the evening. Lows in the mid 40s.
.SUNDAY AND SUNDAY NIGHT...Mostly clear. Highs 61 to 69. Lows in
the mid 40s.
.MONDAY...Sunny. Highs 65 to 73.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the mid
40s. Highs 65 to 73.
$$
MTZ321-172200-
Meagher County Valleys-
Including the cities of Martinsdale, Checkerboard, Ringling,
and White Sulphur Springs
336 AM MDT Thu Sep 17 2026
.TODAY...Mostly sunny until late afternoon then becoming mostly
cloudy. Highs in the mid 70s. Southeast winds up to 10 mph.
.TONIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows in the upper 40s. Southeast winds up to 10 mph.
.FRIDAY...Mostly cloudy. Chance of rain showers and slight chance
of thunderstorms in the afternoon. Highs in the lower 70s.
Southwest winds up to 5 mph shifting to the north in the
afternoon. Chance of precipitation 50 percent.
.FRIDAY NIGHT...Rain showers and chance of thunderstorms in the
evening, then rain after midnight. Lows in the upper 40s. North
winds up to 10 mph. Chance of precipitation near 100 percent.
.SATURDAY...Cooler. Rain in the morning, then rain showers and
slight chance of thunderstorms in the afternoon. Highs in the
lower 60s. North winds up to 10 mph. Chance of precipitation
90 percent.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of rain.
Lows in the lower 40s.
.SUNDAY THROUGH WEDNESDAY...Mostly clear. Highs in the lower 70s.
Lows in the mid 40s.
$$
MTZ322-172200-
Elkhorn and Boulder Mountains-
Including the cities of Montana City, Clancy, Boulder, Corbin,
Wickes, Elk Park Pass, and Homestake Pass
336 AM MDT Thu Sep 17 2026
.TODAY...Warmer. Mostly cloudy early in the morning then becoming
mostly sunny. Slight chance of rain showers early in the
afternoon. Slight chance of thunderstorms late in the afternoon.
Highs 66 to 74. South winds up to 10 mph. Chance of precipitation
20 percent.
.TONIGHT...Partly cloudy. A 20 percent chance of thunderstorms in
the evening. Lows 44 to 50. South winds up to 10 mph shifting to
the west after midnight.
.FRIDAY...Partly sunny. Slight chance of rain showers in the
morning, then chance of thunderstorms in the afternoon. Highs
61 to 69. West winds up to 5 mph shifting to the north in the
afternoon. Chance of precipitation 50 percent.
.FRIDAY NIGHT...Rain showers and chance of thunderstorms in the
evening, then rain after midnight. Lows 42 to 50. Northwest winds
up to 10 mph. Chance of precipitation near 100 percent.
.SATURDAY...Rain in the morning, then rain showers likely and
slight chance of thunderstorms in the afternoon. Highs 54 to 62.
Northwest winds up to 10 mph. Chance of precipitation 90 percent.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of rain
in the evening, then partly cloudy after midnight. Lows 39 to 45.
.SUNDAY...Warmer, sunny. Highs 62 to 70.
.SUNDAY NIGHT AND MONDAY...Clear. Lows 41 to 47. Highs 65 to 73.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows 42 to 48.
Highs 65 to 73.
$$
MTZ323-172200-
Canyon Ferry Area-
Including the cities of Toston, Townsend, and Winston
336 AM MDT Thu Sep 17 2026
.TODAY...Mostly sunny until late afternoon then becoming mostly
cloudy. A 20 percent chance of rain showers late in the
afternoon. Highs in the mid 70s. South winds up to 10 mph.
.TONIGHT...Partly cloudy. A 20 percent chance of thunderstorms in
the evening. Lows in the lower 50s. South winds up to 10 mph.
.FRIDAY...Partly sunny. Slight chance of rain showers in the
morning, then rain showers likely and slight chance of
thunderstorms in the afternoon. Highs in the lower 70s. South
winds up to 5 mph shifting to the northwest in the afternoon.
Chance of precipitation 70 percent.
.FRIDAY NIGHT...Rain showers and chance of thunderstorms in the
evening, then rain showers and slight chance of thunderstorms
after midnight. Lows in the lower 50s. Northwest winds up to
10 mph. Chance of precipitation near 100 percent.
.SATURDAY...Rain in the morning, then rain showers likely and
slight chance of thunderstorms in the afternoon. Highs in the mid
60s. Northwest winds up to 10 mph. Chance of precipitation
90 percent.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of rain
in the evening, then partly cloudy after midnight. Lows in the
upper 40s.
.SUNDAY...Sunny. Highs in the lower 70s.
.SUNDAY NIGHT AND MONDAY...Clear. Lows 45 to 51. Highs in the mid
70s.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows 45 to 51.
Highs in the mid 70s.
$$
MTZ324-172200-
Missouri Headwaters-
Including the cities of Harrison, Three Forks, Willow Creek,
Pony, and Whitehall
336 AM MDT Thu Sep 17 2026
.TODAY...Partly sunny. Slight chance of rain showers until late
afternoon, then chance of rain showers and slight chance of
thunderstorms late in the afternoon. Highs in the mid 70s. South
winds up to 5 mph. Gusts up to 20 mph in the afternoon. Chance of
precipitation 50 percent.
.TONIGHT...Partly cloudy. A 20 percent chance of thunderstorms in
the evening. Lows around 50. Southwest winds up to 5 mph with
gusts to around 20 mph.
.FRIDAY...Partly sunny. Chance of rain showers in the morning,
then rain showers and slight chance of thunderstorms in the
afternoon. Highs in the lower 70s. West winds up to 5 mph
shifting to the north in the afternoon. Chance of precipitation
80 percent.
.FRIDAY NIGHT...Rain showers and chance of thunderstorms in the
evening, then rain showers and slight chance of thunderstorms
after midnight. Lows in the upper 40s. Northwest winds up to
5 mph. Chance of precipitation near 100 percent.
.SATURDAY...Rain in the morning, then rain showers and slight
chance of thunderstorms in the afternoon. Highs in the mid 60s.
North winds up to 5 mph. Chance of precipitation 90 percent.
.SATURDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
in the evening, then partly cloudy after midnight. Lows in the
mid 40s.
.SUNDAY...Sunny. Highs in the lower 70s.
.SUNDAY NIGHT AND MONDAY...Clear. Lows in the mid 40s. Highs in
the mid 70s.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the mid
40s. Highs in the mid 70s.
$$
MTZ325-172200-
Madison River Valley-
Including the cities of Cameron, Ennis, Jeffers, McAllister,
and Norris
336 AM MDT Thu Sep 17 2026
.TODAY...Partly sunny. Chance of rain showers early in the
morning, then slight chance of rain showers late in the morning.
Chance of rain showers and slight chance of thunderstorms in the
afternoon. Highs in the upper 70s. Southeast winds up to 5 mph
with gusts to around 20 mph shifting to the south 5 to 15 mph
with gusts to around 30 mph in the afternoon. Chance of
precipitation 50 percent.
.TONIGHT...Partly cloudy with slight chance of thunderstorms in
the evening, then mostly cloudy with chance of rain showers after
midnight. Lows around 50. South winds 10 to 20 mph decreasing to
5 to 10 mph after midnight. Chance of precipitation 50 percent.
.FRIDAY...Mostly cloudy. Chance of rain showers in the morning,
then rain showers and chance of thunderstorms in the afternoon.
Highs in the lower 70s. South winds up to 5 mph shifting to the
west in the afternoon. Chance of precipitation 90 percent.
.FRIDAY NIGHT...Rain showers and chance of thunderstorms in the
evening, then rain showers and slight chance of thunderstorms
after midnight. Lows in the mid 40s. Northwest winds up to
10 mph. Chance of precipitation 90 percent.
.SATURDAY...Rain in the morning, then rain showers and slight
chance of thunderstorms in the afternoon. Highs in the mid 60s.
Northwest winds up to 5 mph. Chance of precipitation 90 percent.
.SATURDAY NIGHT...Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms in the evening. Lows in the lower
40s. Chance of precipitation 40 percent.
.SUNDAY AND SUNDAY NIGHT...Mostly clear. Highs in the lower 70s.
Lows in the mid 40s.
.MONDAY...Sunny. Highs in the mid 70s.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the mid
40s. Highs in the upper 70s.
$$
MTZ326-172200-
Gallatin Valley-
Including the cities of Bozeman and Gallatin Gateway
336 AM MDT Thu Sep 17 2026
.TODAY...Partly sunny. Slight chance of rain showers in the
morning, then chance of rain showers in the afternoon. Slight
chance of thunderstorms late in the afternoon. Highs in the upper
70s. East winds up to 5 mph shifting to the south in the
afternoon. Chance of precipitation 50 percent.
.TONIGHT...Partly cloudy. Slight chance of thunderstorms in the
evening, then slight chance of rain showers after midnight. Lows
around 50. Southeast winds up to 10 mph. Chance of precipitation
20 percent.
.FRIDAY...Mostly cloudy. Chance of rain showers in the morning,
then rain showers and chance of thunderstorms in the afternoon.
Highs in the lower 70s. Southeast winds up to 5 mph shifting to
the northwest in the afternoon. Chance of precipitation
90 percent.
.FRIDAY NIGHT...Rain showers and chance of thunderstorms in the
evening, then rain showers and slight chance of thunderstorms
after midnight. Lows in the upper 40s. Northwest winds up to
5 mph. Chance of precipitation near 100 percent.
.SATURDAY...Rain in the morning, then rain showers and slight
chance of thunderstorms in the afternoon. Highs in the mid 60s.
Northwest winds up to 5 mph. Chance of precipitation near
100 percent.
.SATURDAY NIGHT...Mostly cloudy with chance of rain showers and
slight chance of thunderstorms in the evening, then partly cloudy
after midnight. Lows in the mid 40s. Chance of precipitation
50 percent.
.SUNDAY AND SUNDAY NIGHT...Mostly clear. Highs in the lower 70s.
Lows in the mid 40s.
.MONDAY...Sunny. Highs in the mid 70s.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the mid
40s. Highs in the upper 70s.
&&
TEMPERATURE / PRECIPITATION
Bozeman Airport 78 48 74 / 30 20 80
Bozeman MSU 78 50 74 / 40 20 80
$$
MTZ330-172200-
Gallatin and Madison County Mountains and Centennial Mountains-
Including the cities of Big Sky, West Yellowstone, Targhee Pass,
and Raynolds Pass
336 AM MDT Thu Sep 17 2026
.TODAY...Partly sunny. Chance of rain showers in the morning,
then chance of rain showers and slight chance of thunderstorms in
the afternoon. Highs 61 to 71. South winds up to 15 mph. Gusts up
to 30 mph in the afternoon. Chance of precipitation 50 percent.
.TONIGHT...Mostly cloudy. Slight chance of thunderstorms in the
evening, then chance of rain showers after midnight. Lows 42 to
48. South winds up to 15 mph. Gusts up to 30 mph in the evening.
Chance of precipitation 50 percent.
.FRIDAY...Partly sunny with chance of rain showers in the
morning, then cloudy with rain showers likely and chance of
thunderstorms in the afternoon. Highs 56 to 66. South winds up to
10 mph. Gusts up to 25 mph in the afternoon. Chance of
precipitation 70 percent.
.FRIDAY NIGHT...Rain showers and chance of thunderstorms in the
evening, then rain showers and slight chance of thunderstorms
after midnight. Lows 39 to 45. West winds up to 10 mph shifting
to the northwest after midnight. Chance of precipitation near
100 percent.
.SATURDAY...Rain likely in the morning, then rain showers and
slight chance of thunderstorms in the afternoon. Highs 49 to 59.
Northwest winds up to 10 mph. Chance of precipitation near
100 percent.
.SATURDAY NIGHT...Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms in the evening. Lows 37 to 43.
Chance of precipitation 50 percent.
.SUNDAY...Warmer. Mostly sunny. Highs 57 to 67.
.SUNDAY NIGHT...Mostly clear. Lows 37 to 43.
.MONDAY...Sunny. Highs 61 to 71.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows 39 to 45.
Highs 61 to 71.
&&
TEMPERATURE / PRECIPITATION
West Yellowstone 71 39 67 / 70 50 90
$$
MTZ327-172200-
Northwest Beaverhead County-
Including the cities of Dewey, Wisdom, Wise River, Big Hole Pass,
and Chief Joseph Pass
336 AM MDT Thu Sep 17 2026
.TODAY...Mostly cloudy early in the morning then becoming partly
sunny. Chance of rain showers in the morning, then chance of
thunderstorms in the afternoon. Highs 63 to 73. Southeast winds
up to 15 mph. Chance of precipitation 50 percent.
.TONIGHT...Mostly cloudy with chance of thunderstorms in the
evening, then partly cloudy with slight chance of rain showers
after midnight. Lows 39 to 45. South winds up to 10 mph. Chance
of precipitation 50 percent.
.FRIDAY...Partly sunny with chance of rain showers in the
morning, then cloudy with rain showers likely and chance of
thunderstorms in the afternoon. Highs 55 to 63. Northwest winds
up to 10 mph. Chance of precipitation 70 percent.
.FRIDAY NIGHT...Rain showers and slight chance of thunderstorms
in the evening, then rain after midnight. Lows 37 to 43.
Northwest winds up to 10 mph. Chance of precipitation 90 percent.
.SATURDAY...Rain in the morning, then rain showers and slight
chance of thunderstorms in the afternoon. Highs 52 to 62.
Northwest winds up to 10 mph. Chance of precipitation 90 percent.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of rain
in the evening, then partly cloudy after midnight. Lows 34 to 40.
.SUNDAY AND SUNDAY NIGHT...Mostly clear. Highs 59 to 69. Lows
35 to 43.
.MONDAY...Sunny. Highs 61 to 71.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows 36 to 44.
Highs 61 to 71.
$$
MTZ328-172200-
Beaverhead and Western Madison below 6000ft-
Including the cities of Bannack, Dillon, Glen, and Waterloo
336 AM MDT Thu Sep 17 2026
.TODAY...Partly sunny. Chance of rain showers until late
afternoon. Slight chance of thunderstorms early in the afternoon,
then chance of thunderstorms late in the afternoon. Highs 72 to
78. South winds up to 10 mph. Gusts up to 35 mph in the
afternoon. Chance of precipitation 50 percent.
.TONIGHT...Partly cloudy. Slight chance of thunderstorms in the
evening, then slight chance of rain showers after midnight. Lows
in the upper 40s. South winds up to 15 mph. Gusts up to 30 mph in
the evening. Chance of precipitation 20 percent.
.FRIDAY...Partly sunny with chance of rain showers in the
morning, then cloudy with rain showers and chance of
thunderstorms in the afternoon. Highs 65 to 71. Southwest winds
up to 5 mph shifting to the west in the afternoon. Chance of
precipitation 90 percent.
.FRIDAY NIGHT...Rain showers and slight chance of thunderstorms
in the evening, then rain after midnight. Lows in the mid 40s.
Northwest winds up to 10 mph. Chance of precipitation 90 percent.
.SATURDAY...Rain in the morning, then rain showers likely and
slight chance of thunderstorms in the afternoon. Highs 61 to 67.
Northwest winds up to 5 mph. Chance of precipitation 90 percent.
.SATURDAY NIGHT...Mostly cloudy with chance of rain showers and
slight chance of thunderstorms in the evening, then partly cloudy
after midnight. Lows in the lower 40s. Chance of precipitation
40 percent.
.SUNDAY AND SUNDAY NIGHT...Mostly clear. Highs 68 to 74. Lows in
the lower 40s.
.MONDAY...Sunny. Highs 71 to 77.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the mid
40s. Highs 71 to 78.
&&
TEMPERATURE / PRECIPITATION
Dillon 78 47 70 / 50 30 90
$$
MTZ329-172200-
Ruby Mountains and Southern Beaverhead Mountains-
Including the city of Monida Pass
336 AM MDT Thu Sep 17 2026
.TODAY...Partly sunny. Chance of rain showers until late
afternoon. Slight chance of thunderstorms in the late morning and
early afternoon, then chance of thunderstorms late in the
afternoon. Highs 63 to 71. Southeast winds up to 10 mph with
gusts to around 25 mph increasing to south 15 to 20 mph with
gusts to around 35 mph in the afternoon. Chance of precipitation
50 percent.
.TONIGHT...Partly cloudy with chance of thunderstorms in the
evening, then mostly cloudy with chance of rain showers after
midnight. Lows in the mid 40s. South winds 5 to 15 mph. Gusts up
to 35 mph in the evening. Chance of precipitation 50 percent.
.FRIDAY...Partly sunny with chance of rain showers in the
morning, then rain showers and chance of thunderstorms in the
afternoon. Highs 57 to 65. South winds up to 10 mph shifting to
the southwest with gusts to around 25 mph in the afternoon.
Chance of precipitation 90 percent.
.FRIDAY NIGHT...Rain showers and slight chance of thunderstorms
in the evening, then rain after midnight. Lows in the lower 40s.
Northwest winds up to 10 mph. Chance of precipitation 90 percent.
.SATURDAY...Rain likely in the morning, then rain showers likely
and slight chance of thunderstorms in the afternoon. Highs 53 to
61. Northwest winds up to 10 mph. Chance of precipitation
70 percent.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows around 40.
.SUNDAY AND SUNDAY NIGHT...Mostly clear. Highs 60 to 68. Lows in
the lower 40s.
.MONDAY...Sunny. Highs 63 to 71.
.MONDAY NIGHT THROUGH WEDNESDAY...Mostly clear. Lows in the lower
40s. Highs 63 to 72.
$$