Sourdough, MT Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Sourdough, MT in one place.
Mostly sunny. High near 94, with temperatures falling to around 92 in the afternoon. South southwest wind 5 to 12 mph.
Local Weather Overview
This forecast page for Sourdough, 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: Jul 24, 2026 12:50 PM MDT.
The active forecast window currently covers Jul 26 to Jul 30, 2026 for Sourdough, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 26 to Jul 30, 2026
- Latest sync
- Jul 24, 2026 12:50 PM MDT
- Forecast office
- BYZ
- Source
- NOAA / NWS
Daily Outlook
This Week in Sourdough
Sunday looks like the warmest upcoming period in Sourdough at 94 degrees F.
Monday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Sunday at about 5 to 12 mph SSW.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Jul 24, 2026 12:50 PM MDT
- Coverage
- 6 days
- Time zone
- America/Denver
- Forecast office
- BYZ
- Radar station
- KBLX
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 63. West wind 5 to 10 mph.
Sunny, with a high near 91. North northeast wind 5 to 9 mph.
Partly cloudy, with a low around 61. East wind 5 to 10 mph.
Sunny, with a high near 94. West wind 3 to 7 mph.
Mostly clear, with a low around 62. North northeast wind 5 to 9 mph.
Sunny, with a high near 94. Northwest wind 5 to 8 mph.
Mostly clear, with a low around 62. Northeast wind 3 to 9 mph.
Sunny, with a high near 93. West southwest wind 2 to 8 mph.
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 63. Northwest wind 3 to 9 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Jul 26
|
Mostly Sunny
|
94°F |
5 to 12 mph
SSW
|
|
Sunday Night
Jul 26
|
Partly Cloudy
|
63°F |
5 to 10 mph
W
|
|
Monday
Jul 27
|
Sunny
|
91°F |
5 to 9 mph
NNE
|
|
Monday Night
Jul 27
|
Partly Cloudy
|
61°F |
5 to 10 mph
E
|
|
Tuesday
Jul 28
|
Sunny
|
94°F |
3 to 7 mph
W
|
|
Tuesday Night
Jul 28
|
Mostly Clear
|
62°F |
5 to 9 mph
NNE
|
|
Wednesday
Jul 29
|
Sunny
|
94°F |
5 to 8 mph
NW
|
|
Wednesday Night
Jul 29
|
Mostly Clear
|
62°F |
3 to 9 mph
NE
|
|
Thursday
Jul 30
|
Sunny
|
93°F |
2 to 8 mph
WSW
|
|
Thursday Night
Jul 30
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
63°F |
3 to 9 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sourdough.