Summit Valley, MT Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Summit Valley, MT in one place.
Mostly cloudy. Low around 36, with temperatures rising to around 39 overnight. West southwest wind around 9 mph.
Local Weather Overview
This forecast page for Summit Valley, 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 11, 2026 1:37 AM MST.
The active forecast window currently covers Nov 11 to Nov 17, 2026 for Summit Valley, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 11 to Nov 17, 2026
- Latest sync
- Nov 11, 2026 1:37 AM MST
- Forecast office
- TFX
- Source
- NOAA / NWS
Daily Outlook
This Week in Summit Valley
Veterans Day looks like the warmest upcoming period in Summit Valley at 55 degrees F.
Sunday Night is the coolest period ahead with temperatures near 32 degrees F.
The strongest winds are forecast for Overnight at about 9 mph WSW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 11, 2026 1:37 AM MST
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- TFX
- Radar station
- KTFX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly sunny. High near 55, with temperatures falling to around 50 in the afternoon. West southwest wind 5 to 8 mph.
Mostly cloudy, with a low around 36. Southwest wind 2 to 6 mph.
Partly sunny, with a high near 55. Southwest wind around 2 mph.
Partly cloudy, with a low around 35. South southwest wind 2 to 6 mph.
Mostly sunny, with a high near 52. South wind around 5 mph.
Mostly cloudy, with a low around 35. South wind 2 to 7 mph.
A chance of rain after 5pm. Mostly sunny, with a high near 47. South southwest wind around 3 mph.
A chance of rain before 5am. Partly cloudy, with a low around 33.
Mostly sunny, with a high near 45.
Partly cloudy, with a low around 32.
A slight chance of rain after 5pm. Partly sunny, with a high near 45.
A chance of rain before 2am, then a chance of rain and snow. Mostly cloudy, with a low around 32. Little or no snow accumulation expected.
A chance of snow before 11am, then a chance of rain and snow. Mostly cloudy, with a high near 40. Little or no snow accumulation expected.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Nov 11
|
Mostly Cloudy
|
36°F |
9 mph
WSW
|
|
Veterans Day
Nov 11
|
Mostly Sunny
|
55°F |
5 to 8 mph
WSW
|
|
Wednesday Night
Nov 11
|
Mostly Cloudy
|
36°F |
2 to 6 mph
SW
|
|
Thursday
Nov 12
|
Partly Sunny
|
55°F |
2 mph
SW
|
|
Thursday Night
Nov 12
|
Partly Cloudy
|
35°F |
2 to 6 mph
SSW
|
|
Friday
Nov 13
|
Mostly Sunny
|
52°F |
5 mph
S
|
|
Friday Night
Nov 13
|
Mostly Cloudy
|
35°F |
2 to 7 mph
S
|
|
Saturday
Nov 14
|
Mostly Sunny then Chance Light Rain
|
47°F |
3 mph
SSW
|
|
Saturday Night
Nov 14
|
Chance Light Rain
|
33°F |
1 to 5 mph
SW
|
|
Sunday
Nov 15
|
Mostly Sunny
|
45°F |
5 mph
SW
|
|
Sunday Night
Nov 15
|
Partly Cloudy
|
32°F |
2 to 6 mph
SSW
|
|
Monday
Nov 16
|
Partly Sunny then Slight Chance Light Rain
|
45°F |
2 mph
SSW
|
|
Monday Night
Nov 16
|
Chance Light Rain then Chance Rain And Snow
|
32°F |
2 mph
SW
|
|
Tuesday
Nov 17
|
Chance Light Snow
|
40°F |
1 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Summit Valley.