Grantsdale, MT Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grantsdale, MT in one place.
Mostly sunny, with a high near 58. South wind 6 to 10 mph.
Local Weather Overview
This forecast page for Grantsdale, MT is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Nov 5, 2026 4:43 PM MST.
The active forecast window currently covers Nov 7 to Nov 11, 2026 for Grantsdale, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 7 to Nov 11, 2026
- Latest sync
- Nov 5, 2026 4:43 PM MST
- Forecast office
- MSO
- Source
- NOAA / NWS
Daily Outlook
This Week in Grantsdale
Saturday looks like the warmest upcoming period in Grantsdale at 58 degrees F.
Sunday Night is the coolest period ahead with temperatures near 32 degrees F.
The strongest winds are forecast for Saturday Night at about 6 to 16 mph S.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 5, 2026 4:43 PM MST
- Coverage
- 6 days
- Time zone
- America/Denver
- Forecast office
- MSO
- Radar station
- KMSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 37.
Partly sunny, with a high near 53.
Mostly cloudy, with a low around 32.
Partly sunny, with a high near 53.
Mostly cloudy, with a low around 33.
A slight chance of rain after 5pm. Mostly sunny, with a high near 56.
A slight chance of rain before 11pm. Partly cloudy, with a low around 37.
Mostly sunny, with a high near 58.
A slight chance of rain after 5am. Mostly cloudy, with a low around 37.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Nov 7
|
Mostly Sunny
|
58°F |
6 to 10 mph
S
|
|
Saturday Night
Nov 7
|
Partly Cloudy
|
37°F |
6 to 16 mph
S
|
|
Sunday
Nov 8
|
Partly Sunny
|
53°F |
6 to 15 mph
WSW
|
|
Sunday Night
Nov 8
|
Mostly Cloudy
|
32°F |
6 mph
SW
|
|
Monday
Nov 9
|
Partly Sunny
|
53°F |
5 mph
S
|
|
Monday Night
Nov 9
|
Mostly Cloudy
|
33°F |
2 to 8 mph
SSW
|
|
Tuesday
Nov 10
|
Mostly Sunny then Slight Chance Light Rain
|
56°F |
5 to 9 mph
SSW
|
|
Tuesday Night
Nov 10
|
Slight Chance Light Rain then Partly Cloudy
|
37°F |
5 to 9 mph
SSW
|
|
Veterans Day
Nov 11
|
Mostly Sunny
|
58°F |
5 to 13 mph
S
|
|
Wednesday Night
Nov 11
|
Mostly Cloudy then Slight Chance Light Rain
|
37°F |
5 to 14 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grantsdale.