Montana Weather General Forecast
458
FPUS65 KTFX 191004
SFPMT
State Forecast For Montana
National Weather Service Great Falls MT
404 AM MDT Tue Aug 19 2025
MTZ001.007-043-192200-
West of the Continental Divide-
National Weather Service Missoula MT
404 AM MDT Tue Aug 19 2025
.TODAY...Mostly sunny. Highs in the upper 80s to mid 90s.
.TONIGHT...Partly cloudy with a chance of rain showers and a
slight chance of thunderstorms. Lows in the upper 40s to mid 50s.
.WEDNESDAY...Mostly sunny in the morning, then mostly clear with
a chance of rain showers in the afternoon and evening. Highs in
the mid 80s to lower 90s.
.THURSDAY...Mostly clear. Lows in the mid 40s to lower 50s. Highs
in the 80s.
.FRIDAY...Mostly clear. Lows in the 40s to lower 50s. Highs in
the 80s to lower 90s.
.SATURDAY...Mostly clear. Lows in the mid 40s to lower 50s. Highs
in the upper 80s to mid 90s.
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MTZ301.314-316.318-192200-
Central Montana-
National Weather Service Great Falls MT
404 AM MDT Tue Aug 19 2025
.TODAY...Sunny. Highs 90 to 95...80 to 90 in the mountains.
.TONIGHT...Partly cloudy. Chance of showers through the night.
Slight chance of thunderstorms after midnight. Lows 60 to 65...
50 to 60 in the mountains.
.WEDNESDAY...Sunny then becoming partly cloudy. Slight chance of
thunderstorms in the evening. Highs 85 to 95...75 to 85 in the
mountains.
.THURSDAY...Mostly clear. Lows 50 to 60. Highs 75 to 80.
.FRIDAY...Mostly clear. Lows 45 to 55. Highs 70 to 80.
.SATURDAY...Mostly clear. Lows 45 to 50. Highs 75 to 80.
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MTZ315-319.330-192200-
Southwest Montana-
National Weather Service Great Falls MT
404 AM MDT Tue Aug 19 2025
.TODAY...Sunny. Highs 85 to 95...75 to 85 in the mountains.
.TONIGHT...Mostly clear. Lows 50 to 60.
.WEDNESDAY...Sunny in the morning then becoming partly cloudy.
Slight chance of rain showers in the afternoon and evening. Highs
80 to 90...75 to 85 in the mountains.
.THURSDAY...Mostly clear. Lows 45 to 55. Highs 70 to 80.
.FRIDAY...Mostly clear. Lows 45 to 50. Highs 75 to 85.
.SATURDAY...Mostly clear. Lows 45 to 50. Highs 75 to 85.
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MTZ016.027-059.062-192200-
Northeast Montana-
National Weather Service Glasgow MT
404 AM MDT Tue Aug 19 2025
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MDT
WEDNESDAY...
.TODAY...Sunny. Highs 96 to 101.
.TONIGHT...Mostly clear. Lows in the mid 60s to lower 70s.
.WEDNESDAY...Sunny in the morning, then mostly clear with a
slight chance of showers and thunderstorms in the afternoon and
evening. Highs 96 to 101.
.THURSDAY...Mostly clear. A slight chance of showers and
thunderstorms. Highs near 80. Lows in the lower to mid 60s.
.FRIDAY...Mostly clear. Highs in the mid to upper 70s. Lows in
the lower to mid 50s.
.SATURDAY...Mostly clear. Highs in the mid to upper 70s. Lows
near 50.
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MTZ028.042-056.058-063.068-192200-
South Central and Southeast Montana-
National Weather Service Billings MT
404 AM MDT Tue Aug 19 2025
...Heat Advisory in effect from 9 AM this morning to 9 PM MDT
Wednesday for portions of South Central Montana... and all of
Southeast Montana...
.TODAY...Sunny. Highs 94 to 104.
.TONIGHT...Mostly clear. Lows from the mid 50s west to the lower
70s east.
.WEDNESDAY...Sunny. Highs 93 to 103.
.WEDNESDAY NIGHT...Partly cloudy. Slight chance of thunderstorms
west...and slight chance of showers east. Lows in the mid 50s to
upper 60s.
.THURSDAY...Sunny. Highs in the lower to mid 80s.
.THURSDAY NIGHT...Partly cloudy. Chance of showers and slight
chance of thunderstorms east. Lows of around 50 to around 60.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the upper 40s to
the upper 50s. Highs in the upper 70s to mid 80s.
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