185
FPUS55 KMSO 312031
ZFPMSO

Zone Forecast Product
National Weather Service Missoula MT
230 PM MDT Sun Aug 31 2025

MTZ001-011000-
Kootenai/Cabinet Region-
Including the cities of Libby and Eureka
230 PM MDT Sun Aug 31 2025

.TONIGHT...Partly cloudy then becoming mostly cloudy in the late
evening and early morning then becoming partly cloudy. Haze and
areas of smoke through the night. A 20 percent chance of rain
late in the evening. Lows in the 50s.
.LABOR DAY...Mostly sunny. Haze, hot. Highs in the 90s.
.MONDAY NIGHT...Partly cloudy. Haze through the night. Areas of
smoke after midnight. Lows in the 50s to lower 60s.
.TUESDAY...Mostly sunny. Haze in the morning. Hot. Highs 95 to
102.
.TUESDAY NIGHT...Mostly clear. Lows in the 50s.
.WEDNESDAY...Mostly sunny. Highs 93 to 100.
.WEDNESDAY NIGHT...Mostly clear. Lows in the 50s to lower 60s.
.THURSDAY...Mostly sunny. Highs in the 90s.
.THURSDAY NIGHT...Mostly clear. Lows in the 50s.
.FRIDAY...Partly cloudy. Highs in the upper 80s to mid 90s.
.FRIDAY NIGHT...Partly cloudy. Lows in the 50s.
.SATURDAY...Partly cloudy. Highs in the mid 80s to lower 90s.
.SATURDAY NIGHT...Mostly cloudy. A 20 percent chance of rain in
the evening. Lows in the 50s.
.SUNDAY...Mostly cloudy. A 20 percent chance of rain in the
afternoon. Highs in the upper 70s to mid 80s.

$$

MTZ002-011000-
West Glacier Region-
Including the city of Swan Lake
230 PM MDT Sun Aug 31 2025

.TONIGHT...Partly cloudy. Haze through the night. Areas of smoke
until early morning. A 20 percent chance of rain in the evening.
Lows in the mid 50s to lower 60s. East winds to 15 mph. Gusts up
to 30 mph in the evening.
.LABOR DAY...Mostly sunny. Haze through the day. Areas of smoke
in the afternoon. Highs in the 80s.
.MONDAY NIGHT...Partly cloudy. Haze through the night. Areas of
smoke in the evening. Lows in the mid 50s to lower 60s.
.TUESDAY...Mostly sunny. Haze in the morning. Highs in the 80s.
.TUESDAY NIGHT...Partly cloudy. Lows in the 50s. Northeast winds
to 15 mph.
.WEDNESDAY...Mostly sunny. Highs in the 80s.
.WEDNESDAY NIGHT...Mostly clear. Lows in the 50s to lower 60s.
.THURSDAY...Mostly sunny. Highs in the upper 70s to mid 80s.
.THURSDAY NIGHT...Mostly clear. Lows in the 50s.
.FRIDAY...Partly cloudy. Highs in the mid 70s to lower 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the 50s.
.SATURDAY...Partly cloudy. Highs in the mid 70s to lower 80s.
.SATURDAY NIGHT...Mostly cloudy. A 20 percent chance of rain in
the evening. Lows in the 50s.
.SUNDAY...Mostly cloudy with a 20 percent chance of rain. Highs
in the upper 60s to mid 70s.

$$

MTZ003-011000-
Flathead/Mission Valleys-
Including the cities of Kalispell, Polson, and St. Ignatius
230 PM MDT Sun Aug 31 2025

.TONIGHT...Partly cloudy. Areas of smoke until early morning.
Haze in the late evening and overnight. Slight chance of showers
and thunderstorms early in the evening, then slight chance of
rain late in the evening. Chance of precipitation 20 percent.
Lows in the 50s. Northeast winds to 15 mph.
.LABOR DAY...Mostly sunny. Haze through the day. Areas of smoke
in the afternoon. Highs in the upper 80s to mid 90s.
.MONDAY NIGHT...Partly cloudy. Haze through the night. Areas of
smoke in the evening. Lows in the 50s.
.TUESDAY...Mostly sunny. Haze in the morning. Highs in the 90s.
.TUESDAY NIGHT...Mostly clear. Lows in the 50s.
.WEDNESDAY...Mostly sunny. Highs in the upper 80s to mid 90s.
.WEDNESDAY NIGHT...Mostly clear. Lows in the 50s.
.THURSDAY...Mostly sunny. Highs in the upper 80s to mid 90s.
.THURSDAY NIGHT...Mostly clear. Lows in the 50s.
.FRIDAY...Partly cloudy. Highs in the mid 80s to lower 90s.
.FRIDAY NIGHT...Partly cloudy. Lows in the 50s.
.SATURDAY...Partly cloudy. Highs in the 80s.
.SATURDAY NIGHT...Mostly cloudy. Lows in the 50s.
.SUNDAY...Mostly cloudy. A 20 percent chance of rain in the
afternoon. Highs in the mid 70s to lower 80s.

$$

MTZ004-011000-
Lower Clark Fork Region-
Including the cities of Noxon, Thompson Falls, and Superior
230 PM MDT Sun Aug 31 2025

.TONIGHT...Partly cloudy. Haze through the night. Areas of smoke
through the night. Lows in the 50s to lower 60s. East winds to
15 mph. Gusts up to 30 mph after midnight.
.LABOR DAY...Mostly sunny. Haze through the day. Areas of smoke
in the morning. Highs in the 90s.
.MONDAY NIGHT...Partly cloudy. Haze through the night. A
30 percent chance of rain in the evening. Lows in the mid 50s to
lower 60s. East winds 15 to 20 mph.
.TUESDAY...Mostly sunny. Haze in the morning. Highs in the 90s.
.TUESDAY NIGHT...Mostly clear. Lows in the 50s to lower 60s.
.WEDNESDAY...Mostly sunny. Highs in the upper 80s to mid 90s.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 50s to lower
60s.
.THURSDAY...Mostly sunny. Highs in the upper 80s to mid 90s.
.THURSDAY NIGHT...Partly cloudy. Lows in the 50s to lower 60s.
.FRIDAY...Partly cloudy. Highs in the 80s to lower 90s.
.FRIDAY NIGHT...Partly cloudy. Lows in the 50s.
.SATURDAY...Partly cloudy. Highs in the 80s.
.SATURDAY NIGHT...Mostly cloudy. Lows in the 50s.
.SUNDAY...Mostly cloudy with a 20 percent chance of rain. Highs
in the 70s to lower 80s.

$$

MTZ005-011000-
Missoula/Bitterroot Valleys-
Including the cities of Hamilton and Darby
230 PM MDT Sun Aug 31 2025

.TONIGHT...Partly cloudy. Haze through the night. Areas of smoke
late in the night. Lows in the 50s.
.LABOR DAY...Mostly sunny. Haze and areas of smoke. Highs in the
lower to mid 90s.
.MONDAY NIGHT...Partly cloudy. Haze. Lows in the 50s.
.TUESDAY...Mostly sunny. Haze in the morning. Highs in the lower
to mid 90s.
.TUESDAY NIGHT...Mostly clear. Lows in the 50s.
.WEDNESDAY...Mostly sunny. Highs in the lower to mid 90s.
.WEDNESDAY NIGHT...Mostly clear. Lows in the 50s.
.THURSDAY...Mostly sunny. Highs near 90.
.THURSDAY NIGHT...Partly cloudy. Lows in the 50s.
.FRIDAY...Partly cloudy. Highs in the mid to upper 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower to mid 50s.
.SATURDAY...Mostly cloudy. A 20 percent chance of rain in the
afternoon. Highs in the lower to mid 80s.
.SATURDAY NIGHT...Mostly cloudy with a 30 percent chance of rain.
Lows in the lower to mid 50s.
.SUNDAY...Mostly cloudy with a 30 percent chance of rain. Highs
in the mid 70s to lower 80s.

$$

MTZ006-011000-
Bitterroot/Sapphire Mountains-
Including the city of Sula
230 PM MDT Sun Aug 31 2025

.TONIGHT...Partly cloudy. Haze through the night. Areas of smoke
in the late evening and overnight. Lows in the upper 40s to mid
50s. East winds to 15 mph.
.LABOR DAY...Mostly sunny. Haze through the day. Areas of smoke
in the morning. Highs in the 80s. Southeast winds to 15 mph.
.MONDAY NIGHT...Mostly clear. Haze. Lows in the upper 40s to mid
50s.
.TUESDAY...Mostly sunny. Haze in the morning. Highs in the 80s.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s to mid 50s.
.WEDNESDAY...Mostly sunny. Highs in the upper 70s to mid 80s.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s to mid
50s.
.THURSDAY...Mostly sunny. Highs in the upper 70s to mid 80s.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s to mid
50s.
.FRIDAY...Partly cloudy. A 20 percent chance of showers and
thunderstorms in the afternoon. Highs in the mid 70s to lower
80s.
.FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the
evening. Lows in the upper 40s to mid 50s.
.SATURDAY...Mostly cloudy. Chance of rain showers and a slight
chance of thunderstorms in the afternoon. Chance of precipitation
30 percent. Highs in the 70s.
.SATURDAY NIGHT...Mostly cloudy with a 30 percent chance of rain.
Lows in the mid 40s to lower 50s.
.SUNDAY...Mostly cloudy. Slight chance of rain in the morning,
then chance of rain showers and a slight chance of thunderstorms
in the afternoon. Chance of precipitation 40 percent. Highs in
the upper 60s to mid 70s.

$$

MTZ007-011000-
Butte/Blackfoot Region-
Including the cities of Anaconda, Deer Lodge, and Drummond
230 PM MDT Sun Aug 31 2025

.TONIGHT...Partly cloudy. Haze through the night. Areas of smoke
in the late evening and overnight. Lows in the upper 40s to mid
50s. Northeast winds to 15 mph with gusts to around 30 mph
shifting to the southeast after midnight.
.LABOR DAY...Mostly sunny. Haze and areas of smoke. Highs in the
80s. Southeast winds to 15 mph.
.MONDAY NIGHT...Partly cloudy. Haze through the night. Areas of
smoke in the evening. Lows in the upper 40s to mid 50s.
.TUESDAY...Mostly sunny. Haze in the morning. Highs in the 80s.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s to mid 50s.
.WEDNESDAY...Mostly sunny. Highs in the 80s.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s to mid
50s.
.THURSDAY...Mostly sunny. Highs in the upper 70s to mid 80s.
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 40s to lower
50s.
.FRIDAY...Partly cloudy. Highs in the mid 70s to lower 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s to lower 50s.
.SATURDAY...Mostly cloudy. A 20 percent chance of showers and
thunderstorms in the afternoon. Highs in the 70s to lower 80s.
.SATURDAY NIGHT...Mostly cloudy. Chance of rain showers and a
slight chance of thunderstorms in the evening, then slight chance
of rain after midnight. Chance of precipitation 30 percent. Lows
in the mid 40s to lower 50s.
.SUNDAY...Mostly cloudy. Slight chance of rain in the morning,
then chance of rain showers and a slight chance of thunderstorms
in the afternoon. Chance of precipitation 40 percent. Highs in
the upper 60s to mid 70s.

$$

MTZ043-011000-
Potomac/Seeley Lake Region-
Including the cities of East Missoula, Seeley Lake, and Clinton
230 PM MDT Sun Aug 31 2025

.TONIGHT...Partly cloudy. Haze in the evening. Areas of smoke in
the late evening and overnight. Lows in the 50s.
.LABOR DAY...Mostly sunny. Areas of smoke through the day. Haze
in the afternoon. Highs in the mid 80s to lower 90s.
.MONDAY NIGHT...Partly cloudy. Haze. Lows in the 50s.
.TUESDAY...Mostly sunny. Haze in the morning. Highs in the mid
80s to lower 90s.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s to mid 50s.
.WEDNESDAY...Mostly sunny. Highs in the mid 80s to lower 90s.
.WEDNESDAY NIGHT...Mostly clear. Lows in the 50s.
.THURSDAY...Mostly sunny. Highs in the 80s to lower 90s.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s to mid 50s.
.FRIDAY...Partly cloudy. Highs in the 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s to mid 50s.
.SATURDAY...Partly cloudy. Highs in the upper 70s to mid 80s.
.SATURDAY NIGHT...Mostly cloudy. A 20 percent chance of rain in
the evening. Lows in the upper 40s to mid 50s.
.SUNDAY...Mostly cloudy. A 20 percent chance of rain in the
afternoon. Highs in the 70s.

$$

IDZ009-011000-
Western Lemhi County-
Including the city of Shoup
230 PM MDT Sun Aug 31 2025

.TONIGHT...Partly cloudy. Haze and areas of smoke. Lows in the
50s to lower 60s.
.LABOR DAY...Mostly sunny. Haze through the day. Areas of smoke
in the morning. Highs in the 80s. Southeast winds to 15 mph.
.MONDAY NIGHT...Mostly clear. Haze. Lows in the mid 50s to lower
60s.
.TUESDAY...Mostly sunny. Haze in the morning. Highs in the mid
80s to lower 90s.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 50s to lower 60s.
.WEDNESDAY...Mostly sunny. Highs in the 80s to lower 90s.
.WEDNESDAY NIGHT...Mostly clear. Lows in the 50s to lower 60s.
.THURSDAY...Sunny. Highs in the 80s to lower 90s.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s to lower 60s.
.FRIDAY...Mostly sunny. Highs in the upper 70s to mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 50s to lower 60s.
.SATURDAY...Partly cloudy. Chance of rain showers and a slight
chance of thunderstorms in the afternoon. Chance of precipitation
30 percent. Highs in the 70s to lower 80s.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of rain.
Lows in the 50s.
.SUNDAY...Mostly cloudy. Chance of rain showers and a slight
chance of thunderstorms in the afternoon. Chance of precipitation
40 percent. Highs in the 70s.

$$

IDZ010-011000-
Eastern Lemhi County-
Including the cities of Salmon and Leadore
230 PM MDT Sun Aug 31 2025

.TONIGHT...Partly cloudy. Haze and areas of smoke. Lows in the
upper 40s to mid 50s. Northeast winds to 15 mph in the evening.
.LABOR DAY...Mostly sunny. Haze and areas of smoke. Highs in the
80s.
.MONDAY NIGHT...Mostly clear. Haze. Lows in the upper 40s to mid
50s.
.TUESDAY...Mostly sunny. Haze in the morning. Highs in the 80s.
.TUESDAY NIGHT...Mostly clear. Lows in the 50s.
.WEDNESDAY...Mostly sunny. Highs in the 80s.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s to mid
50s.
.THURSDAY...Mostly sunny. Highs in the 80s.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s to mid
50s.
.FRIDAY...Partly cloudy. A 20 percent chance of showers and
thunderstorms in the afternoon. Highs in the upper 70s to mid
80s.
.FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in
the evening, then partly cloudy after midnight. Lows in the upper
40s to mid 50s.
.SATURDAY...Mostly cloudy. Chance of rain showers and a slight
chance of thunderstorms in the afternoon. Chance of precipitation
30 percent. Highs in the 70s to lower 80s.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of rain.
Lows in the upper 40s to mid 50s.
.SUNDAY...Mostly cloudy. Slight chance of rain in the morning,
then chance of rain showers and a slight chance of thunderstorms
in the afternoon. Chance of precipitation 40 percent. Highs in
the 70s.

$$

IDZ005-011000-
Northern Clearwater Mountains-
Including the cities of Pierce and Elk River
130 PM PDT Sun Aug 31 2025

.TONIGHT...Partly cloudy. Haze through the night. Areas of smoke
after midnight. Lows in the 50s.
.LABOR DAY...Mostly sunny. Haze, hot. Highs in the 90s.
.MONDAY NIGHT...Partly cloudy. Haze. Lows in the 50s.
.TUESDAY...Mostly sunny. Haze in the morning. Hot. Highs 94 to
101.
.TUESDAY NIGHT...Clear. Lows in the 50s.
.WEDNESDAY...Sunny. Highs in the 90s.
.WEDNESDAY NIGHT...Clear. Lows in the 50s.
.THURSDAY...Sunny. Highs in the 90s.
.THURSDAY NIGHT...Mostly clear. Lows in the 50s.
.FRIDAY...Partly cloudy. Highs in the mid 80s to lower 90s.
.FRIDAY NIGHT...Partly cloudy. Lows in the 50s.
.SATURDAY...Mostly cloudy. Highs in the upper 70s to mid 80s.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of rain.
Lows in the upper 40s to mid 50s.
.SUNDAY...Mostly cloudy with a 20 percent chance of rain. Patchy
fog in the morning. Highs in the mid 70s to lower 80s.

$$

IDZ006-011000-
Southern Clearwater Mountains-
Including the cities of Powell, Elk City, and Dixie
130 PM PDT Sun Aug 31 2025

.TONIGHT...Partly cloudy. Haze and areas of smoke. Lows 48 to 63.
.LABOR DAY...Mostly sunny. Haze, hot. Highs 83 to 98.
.MONDAY NIGHT...Mostly clear. Haze and areas of smoke. Lows 47 to
62.
.TUESDAY...Mostly sunny. Hot. Highs 85 to 100.
.TUESDAY NIGHT...Mostly clear. Lows 47 to 62.
.WEDNESDAY...Mostly sunny. Highs 83 to 98.
.WEDNESDAY NIGHT...Mostly clear. Lows 47 to 62.
.THURSDAY...Mostly sunny. Highs 81 to 94.
.THURSDAY NIGHT...Partly cloudy. Lows 47 to 62.
.FRIDAY...Partly cloudy. Highs 76 to 91.
.FRIDAY NIGHT...Partly cloudy. Lows 46 to 61.
.SATURDAY...Mostly cloudy. A 20 percent chance of rain in the
afternoon. Highs 71 to 86.
.SATURDAY NIGHT...Mostly cloudy with a 30 percent chance of rain.
Lows 44 to 59.
.SUNDAY...Mostly cloudy with a 30 percent chance of rain. Patchy
fog in the morning. Highs 67 to 82.

$$

IDZ007-011000-
Orofino/Grangeville Region-
Including the city of Kooskia
130 PM PDT Sun Aug 31 2025

...HEAT ADVISORY IN EFFECT FROM NOON MONDAY TO 9 PM PDT TUESDAY...

.TONIGHT...Partly cloudy. Haze through the night. Areas of smoke
late in the night. Lows in the upper 50s to mid 60s. East winds
to 15 mph.
.LABOR DAY...Mostly sunny. Haze, hot. Highs 92 to 101.
.MONDAY NIGHT...Partly cloudy. Haze. Lows in the upper 50s to mid
60s.
.TUESDAY...Mostly sunny. Haze in the morning. Hot. Highs 94 to
103.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 50s to mid 60s.
.WEDNESDAY...Mostly sunny. Highs 91 to 101.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s to mid
60s.
.THURSDAY...Mostly sunny. Highs in the 80s to upper 90s.
.THURSDAY NIGHT...Partly cloudy. Lows in the 60s.
.FRIDAY...Partly cloudy. Highs in the 80s to mid 90s.
.FRIDAY NIGHT...Partly cloudy. Lows in the 60s.
.SATURDAY...Mostly cloudy. A 20 percent chance of rain in the
afternoon. Highs in the 80s to lower 90s.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of rain.
Lows in the mid 50s to lower 60s.
.SUNDAY...Mostly cloudy with a 20 percent chance of rain. Highs
in the upper 70s to mid 80s.

$$

IDZ008-011000-
Lower Hells Canyon/Salmon River Region-
Including the cities of Riggins and White Bird
130 PM PDT Sun Aug 31 2025

...HEAT ADVISORY IN EFFECT FROM NOON MONDAY TO 9 PM PDT TUESDAY...

.TONIGHT...Partly cloudy. Haze. Lows in the 60s to lower 70s.
.LABOR DAY...Mostly sunny. Haze through the day. Areas of smoke
in the afternoon. Hot. Highs 89 to 102.
.MONDAY NIGHT...Mostly clear. Areas of smoke through the night.
Haze in the evening. Lows in the mid 60s to lower 70s.
.TUESDAY...Mostly sunny. Areas of smoke in the morning. Hot.
Highs 89 to 104.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 60s to lower 70s.
.WEDNESDAY...Mostly sunny. Highs 87 to 102.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 60s to lower
70s.
.THURSDAY...Mostly sunny. Highs 87 to 100.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 60s to lower 70s.
.FRIDAY...Partly cloudy. Highs 83 to 96.
.FRIDAY NIGHT...Partly cloudy. Lows in the 60s.
.SATURDAY...Partly cloudy. A 20 percent chance of rain in the
afternoon. Highs 78 to 91.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of rain.
Lows in the upper 50s to mid 60s.
.SUNDAY...Partly cloudy with a 20 percent chance of rain. Highs
74 to 87.

$$