631
FPUS55 KMSO 012031
ZFPMSO

Zone Forecast Product
National Weather Service Missoula MT
230 PM MDT Mon Sep 1 2025

MTZ001-021000-
Kootenai/Cabinet Region-
Including the cities of Libby and Eureka
230 PM MDT Mon Sep 1 2025

...HEAT ADVISORY IN EFFECT FROM NOON TUESDAY TO MIDNIGHT MDT
WEDNESDAY NIGHT...

.TONIGHT...Partly cloudy then becoming mostly cloudy late in the
evening then becoming partly cloudy. Areas of smoke in the late
evening and early morning. Lows in the 50s.
.TUESDAY...Mostly sunny. Hot. Highs 94 to 101.
.TUESDAY NIGHT...Mostly clear. Areas of smoke. Lows in the 50s.
.WEDNESDAY...Sunny. Areas of smoke in the morning. Hot. Highs
94 to 101.
.WEDNESDAY NIGHT...Mostly clear. Lows in the 50s to lower 60s.
.THURSDAY...Mostly sunny. Highs in the upper 80s to mid 90s.
.THURSDAY NIGHT...Mostly clear. Lows in the 50s.
.FRIDAY...Mostly sunny. Highs in the upper 80s to mid 90s.
.FRIDAY NIGHT...Mostly clear. Lows in the 50s.
.SATURDAY...Partly cloudy. Highs in the mid 80s to lower 90s.
.SATURDAY NIGHT...Partly 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 80s to lower 90s.
.SUNDAY NIGHT...Partly cloudy with a 20 percent chance of rain.
Lows in the upper 40s to mid 50s.
.MONDAY...Mostly cloudy with a 30 percent chance of rain. Highs
in the upper 70s to mid 80s.

$$

MTZ002-021000-
West Glacier Region-
Including the city of Swan Lake
230 PM MDT Mon Sep 1 2025

.TONIGHT...Partly cloudy. A 20 percent chance of rain in the
evening. Lows in the mid 50s to lower 60s.
.TUESDAY...Mostly sunny. A 20 percent chance of rain in the
afternoon. Highs in the 80s.
.TUESDAY NIGHT...Mostly clear. Areas of smoke through the night.
Lows in the 50s. Northeast winds to 15 mph.
.WEDNESDAY...Sunny. Highs in the 80s.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 50s to lower
60s.
.THURSDAY...Mostly sunny. Highs in the mid 70s to lower 80s.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s to mid 50s.
.FRIDAY...Mostly sunny. Highs in the mid 70s to lower 80s.
.FRIDAY NIGHT...Mostly clear. Lows in the upper 40s to mid 50s.
.SATURDAY...Partly cloudy. Highs in the mid 70s to lower 80s.
.SATURDAY NIGHT...Partly cloudy. Lows in the 50s.
.SUNDAY...Partly cloudy. A 20 percent chance of rain in the
afternoon. Highs in the 70s to lower 80s.
.SUNDAY NIGHT...Partly cloudy with a 20 percent chance of rain.
Lows in the 50s.
.MONDAY...Mostly cloudy with a 30 percent chance of rain. Highs
in the upper 60s to mid 70s.

$$

MTZ003-021000-
Flathead/Mission Valleys-
Including the cities of Kalispell, Polson, and St. Ignatius
230 PM MDT Mon Sep 1 2025

.TONIGHT...Partly cloudy. Areas of smoke in the evening. Lows in
the 50s.
.TUESDAY...Mostly sunny. Highs in the upper 80s to mid 90s.
.TUESDAY NIGHT...Mostly clear. Areas of smoke after midnight.
Lows in the 50s.
.WEDNESDAY...Sunny. Areas of smoke in the morning. Highs in the
upper 80s to mid 90s.
.WEDNESDAY NIGHT...Mostly clear. Lows in the 50s to lower 60s.
.THURSDAY...Mostly sunny. Highs in the mid 80s to lower 90s.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s to mid 50s.
.FRIDAY...Mostly sunny. Highs in the 80s.
.FRIDAY NIGHT...Mostly clear. Lows in the upper 40s to mid 50s.
.SATURDAY...Partly cloudy. Highs in the 80s to lower 90s.
.SATURDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. A 20 percent chance of rain. Lows in the 50s.
.SUNDAY...Mostly cloudy. A 20 percent chance of rain in the
afternoon. Highs in the 80s.
.SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of rain.
Lows in the 50s.
.MONDAY...Mostly cloudy with a 30 percent chance of rain. Highs
in the mid 70s to lower 80s.

$$

MTZ004-021000-
Lower Clark Fork Region-
Including the cities of Noxon, Thompson Falls, and Superior
230 PM MDT Mon Sep 1 2025

...HEAT ADVISORY IN EFFECT FROM NOON TUESDAY TO MIDNIGHT MDT
WEDNESDAY NIGHT...

.TONIGHT...Partly cloudy. A 20 percent chance of rain in the
evening. Areas of smoke in the late evening and early morning.
Lows in the mid 50s to lower 60s. Northeast winds 15 to 20 mph in
the evening.
.TUESDAY...Mostly sunny. Hot. Highs in the 90s.
.TUESDAY NIGHT...Mostly clear. Areas of smoke after midnight.
Lows in the mid 50s to lower 60s.
.WEDNESDAY...Sunny. Highs in the 90s.
.WEDNESDAY NIGHT...Clear. Lows in the mid 50s to lower 60s.
.THURSDAY...Sunny. Highs in the mid 80s to lower 90s.
.THURSDAY NIGHT...Mostly clear. Lows in the 50s.
.FRIDAY...Mostly sunny. Highs in the 80s to lower 90s.
.FRIDAY NIGHT...Partly cloudy. Lows in the 50s.
.SATURDAY...Partly cloudy. A 20 percent chance of rain in the
afternoon. Highs in the 80s.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of rain.
Lows in the 50s.
.SUNDAY...Mostly cloudy with a 20 percent chance of rain. Highs
in the upper 70s to mid 80s.
.SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of rain.
Lows in the upper 40s to mid 50s.
.MONDAY...Mostly cloudy with a 30 percent chance of rain. Highs
in the mid 70s to lower 80s.

$$

MTZ005-021000-
Missoula/Bitterroot Valleys-
Including the cities of Hamilton and Darby
230 PM MDT Mon Sep 1 2025

.TONIGHT...Partly cloudy. Areas of smoke in the late evening and
early morning. Lows in the mid to upper 50s.
.TUESDAY...Mostly sunny. Areas of smoke in the afternoon. Highs
in the lower to mid 90s.
.TUESDAY NIGHT...Mostly clear. Areas of smoke in the evening.
Lows in the 50s.
.WEDNESDAY...Mostly sunny. Highs in the lower to mid 90s.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid to upper 50s.
.THURSDAY...Sunny. Highs near 90.
.THURSDAY NIGHT...Mostly clear. Lows in the lower to mid 50s.
.FRIDAY...Mostly sunny. Highs in the mid to upper 80s.
.FRIDAY NIGHT...Mostly clear. Lows in the lower to mid 50s.
.SATURDAY...Partly 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. Slight chance of rain in the morning,
then chance of rain showers and a slight chance of thunderstorms
in the afternoon. Chance of precipitation 30 percent. Highs in
the lower to mid 80s.
.SUNDAY NIGHT...Mostly cloudy with a 30 percent chance of rain.
Lows in the lower to mid 50s.
.MONDAY...Mostly cloudy with a 30 percent chance of rain. Highs
near 80.

$$

MTZ006-021000-
Bitterroot/Sapphire Mountains-
Including the city of Sula
230 PM MDT Mon Sep 1 2025

.TONIGHT...Mostly clear. Lows in the 50s.
.TUESDAY...Mostly sunny. 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 50s.
.THURSDAY...Mostly sunny. Highs in the upper 70s to mid 80s.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 40s to lower 50s.
.FRIDAY...Mostly sunny. 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...Partly cloudy. Chance of rain showers and a slight
chance of thunderstorms in the afternoon. Chance of precipitation
40 percent. Highs in the 70s.
.SATURDAY NIGHT...Mostly cloudy with a 40 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 50 percent. Highs in
the upper 60s to mid 70s.
.SUNDAY NIGHT...Mostly cloudy with a 40 percent chance of rain.
Lows in the mid 40s to lower 50s.
.MONDAY...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.

$$

MTZ007-021000-
Butte/Blackfoot Region-
Including the cities of Anaconda, Deer Lodge, and Drummond
230 PM MDT Mon Sep 1 2025

.TONIGHT...Partly cloudy. Areas of smoke early in the evening.
Lows in the upper 40s to mid 50s.
.TUESDAY...Mostly sunny. Areas of smoke in the afternoon. 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 mid 70s to lower 80s.
.THURSDAY NIGHT...Mostly clear. Lows in the 40s to lower 50s.
.FRIDAY...Mostly sunny. Highs in the mid 70s to lower 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s to lower 50s.
.SATURDAY...Partly cloudy. A 20 percent chance of rain in the
afternoon. Highs in the mid 70s to lower 80s.
.SATURDAY NIGHT...Mostly cloudy with a 40 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 70s.
.SUNDAY 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 40 percent. Lows
in the 40s to lower 50s.
.MONDAY...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.

$$

MTZ043-021000-
Potomac/Seeley Lake Region-
Including the cities of East Missoula, Seeley Lake, and Clinton
230 PM MDT Mon Sep 1 2025

.TONIGHT...Partly cloudy. Areas of smoke in the evening. Lows in
the 50s.
.TUESDAY...Mostly sunny. 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.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 40s to lower 50s.
.FRIDAY...Mostly sunny. Highs in the upper 70s to mid 80s.
.FRIDAY NIGHT...Mostly clear. Lows in the upper 40s to mid 50s.
.SATURDAY...Partly cloudy. Highs in the upper 70s to mid 80s.
.SATURDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. A 20 percent chance of rain. Lows in the upper 40s
to mid 50s.
.SUNDAY...Mostly cloudy. A 20 percent chance of rain in the
afternoon. Highs in the mid 70s to lower 80s.
.SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of rain.
Lows in the upper 40s to mid 50s.
.MONDAY...Mostly cloudy with a 30 percent chance of rain. Highs
in the 70s.

$$

IDZ009-021000-
Western Lemhi County-
Including the city of Shoup
230 PM MDT Mon Sep 1 2025

.TONIGHT...Mostly clear. Lows in the mid 50s to lower 60s.
.TUESDAY...Mostly sunny. Highs in the mid 80s to lower 90s.
.TUESDAY NIGHT...Mostly clear. Areas of smoke in the evening.
Lows in the mid 50s to lower 60s.
.WEDNESDAY...Sunny. Highs in the mid 80s to lower 90s.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 50s to lower
60s.
.THURSDAY...Sunny. Highs in the 80s.
.THURSDAY NIGHT...Partly cloudy. Lows in the 50s to lower 60s.
.FRIDAY...Mostly sunny. Highs in the upper 70s to mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the 50s to lower 60s.
.SATURDAY...Mostly cloudy. Chance of rain showers and a slight
chance of thunderstorms in the afternoon. Chance of precipitation
30 percent. Highs in the mid 70s to lower 80s.
.SATURDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. A 40 percent chance of rain. Lows in the 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.
.SUNDAY NIGHT...Mostly cloudy with a 30 percent chance of rain.
Lows in the 50s.
.MONDAY...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.

$$

IDZ010-021000-
Eastern Lemhi County-
Including the cities of Salmon and Leadore
230 PM MDT Mon Sep 1 2025

.TONIGHT...Mostly clear. Lows in the 50s.
.TUESDAY...Mostly sunny. Highs in the 80s to lower 90s.
.TUESDAY NIGHT...Mostly clear. Lows in the 50s.
.WEDNESDAY...Mostly sunny. Highs in the 80s to lower 90s.
.WEDNESDAY NIGHT...Mostly clear. Lows in the 50s.
.THURSDAY...Mostly sunny. Highs in the 80s.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s to mid
50s.
.FRIDAY...Mostly sunny. A 20 percent chance of showers and
thunderstorms in the afternoon. Highs in the upper 70s to mid
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
40 percent. Highs in the 70s to lower 80s.
.SATURDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. A 40 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 50 percent. Highs in
the 70s.
.SUNDAY NIGHT...Mostly cloudy with a 40 percent chance of rain.
Lows in the mid 40s to lower 50s.
.MONDAY...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.

$$

IDZ005-021000-
Northern Clearwater Mountains-
Including the cities of Pierce and Elk River
130 PM PDT Mon Sep 1 2025

.TONIGHT...Partly cloudy. Lows in the 50s.
.TUESDAY...Mostly sunny. Hot. Highs 93 to 100.
.TUESDAY NIGHT...Mostly clear. Lows in the 50s.
.WEDNESDAY...Sunny, hot. Highs 93 to 100.
.WEDNESDAY NIGHT...Clear. Lows in the 50s.
.THURSDAY...Sunny. Highs in the 90s.
.THURSDAY NIGHT...Mostly clear. Lows in the 50s.
.FRIDAY...Mostly sunny. Highs in the mid 80s to lower 90s.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s to mid 50s.
.SATURDAY...Partly cloudy. A 20 percent chance of rain in the
afternoon. Highs in the 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 30 percent chance of rain. Patchy
fog in the morning. Highs in the upper 70s to mid 80s.
.SUNDAY NIGHT...Mostly cloudy with a 30 percent chance of rain.
Lows in the mid 40s to lower 50s.
.MONDAY...Mostly cloudy with a 30 percent chance of rain. Highs
in the 70s.

$$

IDZ006-021000-
Southern Clearwater Mountains-
Including the cities of Powell, Elk City, and Dixie
130 PM PDT Mon Sep 1 2025

.TONIGHT...Partly cloudy. Areas of smoke. Lows 50 to 65.
.TUESDAY...Mostly sunny. Areas of smoke in the morning. Hot.
Highs 85 to 100.
.TUESDAY NIGHT...Mostly clear. Areas of smoke. Lows 49 to 64.
.WEDNESDAY...Mostly sunny. Areas of smoke in the morning. Hot.
Highs 85 to 99.
.WEDNESDAY NIGHT...Mostly clear. Lows 48 to 63.
.THURSDAY...Mostly sunny. Highs 83 to 96.
.THURSDAY NIGHT...Mostly clear. Lows 46 to 61.
.FRIDAY...Mostly sunny. Highs 78 to 93.
.FRIDAY NIGHT...Partly cloudy. Lows 46 to 61.
.SATURDAY...Partly cloudy. Chance of rain showers and a slight
chance of thunderstorms in the afternoon. Chance of precipitation
30 percent. Highs 72 to 86.
.SATURDAY NIGHT...Mostly cloudy with a 30 percent chance of rain.
Lows 45 to 60.
.SUNDAY...Mostly cloudy. Slight chance of rain in the morning,
then chance of rain showers and a slight chance of thunderstorms
in the afternoon. Patchy fog in the morning. Chance of
precipitation 30 percent. Highs 70 to 84.
.SUNDAY 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
43 to 58.
.MONDAY...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 65 to
80.

$$

IDZ007-021000-
Orofino/Grangeville Region-
Including the city of Kooskia
130 PM PDT Mon Sep 1 2025

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT TUESDAY...

.TONIGHT...Partly cloudy. Areas of smoke in the late evening and
overnight. Lows in the 60s.
.TUESDAY...Mostly sunny. Areas of smoke. Hot. Highs 93 to 103.
.TUESDAY NIGHT...Mostly clear. Lows in the 60s.
.WEDNESDAY...Mostly sunny. Hot. Highs 92 to 102.
.WEDNESDAY NIGHT...Mostly clear. Lows in the 60s.
.THURSDAY...Mostly sunny. Highs 91 to 100.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s to mid 60s.
.FRIDAY...Mostly sunny. Highs in the 80s to mid 90s.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 50s to mid 60s.
.SATURDAY...Partly cloudy. A 20 percent chance of rain in the
afternoon. Highs in the 80s to lower 90s.
.SATURDAY NIGHT...Mostly cloudy with a 30 percent chance of rain.
Lows in the upper 50s to mid 60s.
.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 30 percent. Highs in
the 70s to upper 80s.
.SUNDAY NIGHT...Mostly cloudy with a 30 percent chance of rain.
Lows in the mid 50s to lower 60s.
.MONDAY...Mostly cloudy with a 30 percent chance of rain. Highs
in the mid 70s to lower 80s.

$$

IDZ008-021000-
Lower Hells Canyon/Salmon River Region-
Including the cities of Riggins and White Bird
130 PM PDT Mon Sep 1 2025

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT TUESDAY...

.TONIGHT...Mostly clear. Areas of smoke through the night. Lows
in the mid 60s to lower 70s.
.TUESDAY...Mostly sunny. Areas of smoke in the morning. Hot.
Highs 92 to 104.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 60s to lower 70s.
.WEDNESDAY...Mostly sunny. Hot. Highs 92 to 103.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 60s to lower
70s.
.THURSDAY...Mostly sunny. Highs 88 to 101.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 60s to lower 70s.
.FRIDAY...Mostly sunny. Highs 84 to 97.
.FRIDAY NIGHT...Partly cloudy. Lows in the 60s.
.SATURDAY...Partly 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 30 percent. Highs 78 to
91.
.SATURDAY NIGHT...Mostly cloudy with a 40 percent chance of rain.
Lows in the upper 50s to mid 60s.
.SUNDAY...Partly 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 30 percent. Highs 76 to
89.
.SUNDAY 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 upper 50s to mid 60s.
.MONDAY...Mostly cloudy with a 30 percent chance of rain. Highs
in the lower 70s to mid 80s.

$$