Alta, MT Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Alta, MT in one place.
Mostly sunny. High near 52, with temperatures falling to around 46 in the afternoon. South southwest wind around 3 mph.
Local Weather Overview
This forecast page for Alta, 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 4:38 PM MST.
The active forecast window currently covers Nov 6 to Nov 11, 2026 for Alta, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 6 to Nov 11, 2026
- Latest sync
- Nov 5, 2026 4:38 PM MST
- Forecast office
- MSO
- Source
- NOAA / NWS
Daily Outlook
This Week in Alta
Saturday looks like the warmest upcoming period in Alta at 59 degrees F.
Friday Night is the coolest period ahead with temperatures near 32 degrees F.
The strongest winds are forecast for Wednesday Night at about 3 to 8 mph S.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 5, 2026 4:38 PM MST
- Coverage
- 7 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
Mostly cloudy, with a low around 32. South wind around 3 mph.
Mostly sunny, with a high near 59. South wind around 5 mph.
Partly cloudy, with a low around 35.
A slight chance of rain after 5pm. Mostly sunny, with a high near 57.
A slight chance of rain before 11pm. Mostly cloudy, with a low around 33.
Partly sunny, with a high near 56.
Mostly cloudy, with a low around 33.
Mostly sunny, with a high near 57.
Partly cloudy, with a low around 35.
Mostly sunny, with a high near 59.
A slight chance of rain and snow after 5am. Mostly cloudy, with a low around 35.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Nov 6
|
Mostly Sunny
|
52°F |
3 mph
SSW
|
|
Friday Night
Nov 6
|
Mostly Cloudy
|
32°F |
3 mph
S
|
|
Saturday
Nov 7
|
Mostly Sunny
|
59°F |
5 mph
S
|
|
Saturday Night
Nov 7
|
Partly Cloudy
|
35°F |
3 to 7 mph
S
|
|
Sunday
Nov 8
|
Mostly Sunny then Slight Chance Light Rain
|
57°F |
3 to 7 mph
SW
|
|
Sunday Night
Nov 8
|
Slight Chance Light Rain then Mostly Cloudy
|
33°F |
3 mph
WSW
|
|
Monday
Nov 9
|
Partly Sunny
|
56°F |
1 to 5 mph
S
|
|
Monday Night
Nov 9
|
Mostly Cloudy
|
33°F |
5 mph
SSW
|
|
Tuesday
Nov 10
|
Mostly Sunny
|
57°F |
5 mph
SSW
|
|
Tuesday Night
Nov 10
|
Partly Cloudy
|
35°F |
2 to 6 mph
SSW
|
|
Veterans Day
Nov 11
|
Mostly Sunny
|
59°F |
5 mph
S
|
|
Wednesday Night
Nov 11
|
Mostly Cloudy then Slight Chance Rain And Snow
|
35°F |
3 to 8 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Alta.