Grant, MT Weather Forecast

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Grant, MT Weather Forecast

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Grant MT weather  - Clear - 74°F
Clear
74°F
Updated 4:07 pm
Feels Like 55°F
Humidity 34%
Wind N 13 mph
Barometer  30.02 in
Dew Point 44°F
Grant MT weather  - Clear - 23°C
Clear
23°C
Updated 4:07 pm
Feels Like 13°C
Humidity 34%
Wind N 21 km/h
Barometer  101.7 kPa
Dew Point 7°C

Grant Weather Forecast

TONIGHT SUNDAY SUNDAY NIGHT LABOR DAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY
Grant, MT Weather - Tonight Patchy Fog Grant, MT Weather - Sunday Patchy Fog Grant, MT Weather - Sunday Night Chance Of T-Storm Grant, MT Weather - Labor Day Chance Of T-Storm Grant, MT Weather - Monday Night Partly Cloudy Grant, MT Weather - Tuesday Mostly Clear Grant, MT Weather - Tuesday Night Mostly Clear Grant, MT Weather - Wednesday Partly Cloudy Grant, MT Weather - Wednesday Night Partly Cloudy Grant, MT Weather - Thursday Sunny Grant, MT Weather - Thursday Night Partly Cloudy Grant, MT Weather - Friday Rain Showers
Patchy Fog Patchy Fog Chance of T-Storm Chance of T-Storm Partly Cloudy Mostly Clear Mostly Clear Partly Cloudy Partly Cloudy Sunny Partly Cloudy Rain Showers
Lo: 45°FLo: 7°C Hi: 78°FHi: 26°C
Lo: 45°FLo: 7°C Hi: 64°FHi: 18°C
Lo: 39°FLo: 4°C Hi: 69°FHi: 21°C
Lo: 41°FLo: 5°C
Hi: 69°FHi: 21°C
Lo: 41°FLo: 5°C
Hi: 76°FHi: 24°C
Lo: 45°FLo: 7°C
Hi: 76°FHi: 24°C
Lo: 45°FLo: 7°C
Hi: 78°FHi: 26°C
Lo: 49°FLo: 9°C Hi: 75°FHi: 24°C
POP: 70% POP: 70% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 217 PM MDT Sat Sep 05 2026 Grant, MT Weather - WeatherWorld.com

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Issued: 244 PM MDT Sat Sep 5 2026

Key Messages

  • Showers and thunderstorms tonight and Sunday, become a more widespread rainfall Sunday night into Monday.
  • An isolated severe storm possible Sunday.
  • Cool temperatures to begin the week, with some warmer afternoon temperatures for a few days mid week.

Discussion

...
  • Meteorological Overview: A slow moving upper level low will remain to our west through Sunday, before slowly moving eastward Sunday night into Monday. Expect waves of showers/thunderstorms to move through the CWA from now thr...