Grass Range, MT Weather Forecast
Local 7-day forecast
Patchy Smoke then Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grass Range, MT in one place.
Patchy smoke before 7am. Sunny, with a high near 89. Northwest wind 14 to 22 mph, with gusts as high as 29 mph.
Local Weather Overview
This forecast page for Grass Range, 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 31, 2026 5:50 PM MDT.
The active forecast window currently covers Aug 2 to Aug 6, 2026 for Grass Range, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 2 to Aug 6, 2026
- Latest sync
- Jul 31, 2026 5:50 PM MDT
- Forecast office
- TFX
- Source
- NOAA / NWS
Daily Outlook
This Week in Grass Range
Thursday looks like the warmest upcoming period in Grass Range at 92 degrees F.
Monday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Sunday at about 14 to 22 mph NW.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Jul 31, 2026 5:50 PM MDT
- Coverage
- 6 days
- Time zone
- America/Denver
- Forecast office
- TFX
- Radar station
- KBLX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain showers. Mostly cloudy, with a low around 55. Northwest wind 13 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Mostly sunny, with a high near 69. Northwest wind around 20 mph, with gusts as high as 26 mph.
Mostly clear, with a low around 47. West northwest wind 5 to 16 mph, with gusts as high as 24 mph.
Sunny, with a high near 75.
Mostly clear, with a low around 51.
Sunny, with a high near 87.
Mostly clear, with a low around 58.
Sunny, with a high near 92.
Mostly clear, with a low around 61.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Aug 2
|
Patchy Smoke then Sunny
|
89°F |
14 to 22 mph
NW
|
|
Sunday Night
Aug 2
|
Chance Rain Showers
|
55°F |
13 to 17 mph
NW
|
|
Monday
Aug 3
|
Mostly Sunny
|
69°F |
20 mph
NW
|
|
Monday Night
Aug 3
|
Mostly Clear
|
47°F |
5 to 16 mph
WNW
|
|
Tuesday
Aug 4
|
Sunny
|
75°F |
3 to 10 mph
E
|
|
Tuesday Night
Aug 4
|
Mostly Clear
|
51°F |
7 to 12 mph
SE
|
|
Wednesday
Aug 5
|
Sunny
|
87°F |
6 to 12 mph
SSE
|
|
Wednesday Night
Aug 5
|
Mostly Clear
|
58°F |
7 to 12 mph
SSE
|
|
Thursday
Aug 6
|
Sunny
|
92°F |
6 to 12 mph
WNW
|
|
Thursday Night
Aug 6
|
Mostly Clear
|
61°F |
8 to 12 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grass Range.