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Fairmont, MT Weather Forecast

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Fairmont, MT Weather Forecast

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Fairmont MT weather - Mostly Clear - 61°F
Mostly Clear
61°F
Updated 6:51 pm
Feels Like 48°F
Humidity 49%
Wind N 10 mph
Barometer  29.88 in
Dew Point 42°F
Fairmont MT weather - Mostly Clear - 16°C
Mostly Clear
16°C
Updated 6:51 pm
Feels Like 9°C
Humidity 49%
Wind N 16 km/h
Barometer  101.2 kPa
Dew Point 6°C
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Fairmont Weather Forecast

TONIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY
Fairmont, MT Weather - Tonight Chance Of Showers Fairmont, MT Weather - Monday Chance Of Showers Fairmont, MT Weather - Monday Night Partly Cloudy Fairmont, MT Weather - Tuesday Mostly Cloudy Fairmont, MT Weather - Tuesday Night Patchy Fog Fairmont, MT Weather - Wednesday Patchy Fog Fairmont, MT Weather - Wednesday Night Mostly Clear Fairmont, MT Weather - Thursday Mostly Sunny Fairmont, MT Weather - Thursday Night Chance Of T-Storm Fairmont, MT Weather - Friday Chance Of Rain Fairmont, MT Weather - Friday Night Clearing Fairmont, MT Weather - Saturday Chance Of Rain
Chance of Showers Chance of Showers Partly Cloudy Mostly Cloudy Patchy Fog Patchy Fog Mostly Clear Mostly Sunny Chance of T-Storm Chance of Rain Clearing Chance of Rain
Lo: 35°FLo: 2°C Hi: 55°FHi: 13°C
 Lo: 30°FLo: -1°C Hi: 65°FHi: 18°C
 Lo: 36°FLo: 2°C Hi: 65°FHi: 18°C
 Lo: 36°FLo: 2°C Hi: 70°FHi: 21°C
 Lo: 40°FLo: 4°C Hi: 66°FHi: 19°C
 Lo: 36°FLo: 2°C Hi: 66°FHi: 19°C
POP: 50% POP: 20% POP: 50% POP: 40% POP: 30% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 1223 PM MDT Sun Sep 13 2026 Fairmont, MT Weather - WeatherWorld.com

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Issued: 1159 AM MDT Sun Sep 13 2026

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KEY MESSAGES:
  • Considerable showers continue with mountain snow above 6,500 feet late tonight into early Monday, mainly through central Idaho and northwest Montana.
  • Drying and warming conditions by mid-week.
  • Trending wetter late Thursday into Friday.

An upper low moving through eastern Washington will track into northwest Montana tonight, continuing to bring periodic showers, isolated thunderstorms, and gusty southwest winds across much of the Northern Rockies.

The heaviest precipitati...