Grass Range, MT Weather Forecast
Local 7-day forecast
Patchy Fog then Light Rain
Track current conditions, temperature changes, wind, and the full daily outlook for Grass Range, MT in one place.
Patchy fog before 11am, then rain. Cloudy. High near 47, with temperatures falling to around 43 in the afternoon. East wind 3 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
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: Oct 31, 2026 3:53 PM MDT.
The active forecast window currently covers Nov 1 to Nov 6, 2026 for Grass Range, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 1 to Nov 6, 2026
- Latest sync
- Oct 31, 2026 3:53 PM MDT
- Forecast office
- TFX
- Source
- NOAA / NWS
Daily Outlook
This Week in Grass Range
Tuesday looks like the warmest upcoming period in Grass Range at 60 degrees F.
Monday Night is the coolest period ahead with temperatures near 31 degrees F.
The strongest winds are forecast for Sunday Night at about 9 to 25 mph NNW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 31, 2026 3:53 PM MDT
- Coverage
- 7 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
Rain. Cloudy, with a low around 38. North northwest wind 9 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 100%.
A slight chance of rain before 11am. Mostly sunny, with a high near 46. West northwest wind 7 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.
Mostly clear, with a low around 31. West southwest wind 5 to 8 mph.
Mostly sunny, with a high near 60. Southwest wind 1 to 5 mph.
Partly cloudy, with a low around 36. West wind 1 to 8 mph.
Mostly sunny, with a high near 53.
Partly cloudy, with a low around 34.
Mostly sunny, with a high near 55.
Partly cloudy, with a low around 36.
A slight chance of rain after 5pm. Mostly sunny, with a high near 57.
A slight chance of rain before 5am. Partly cloudy, with a low around 37.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Nov 1
|
Patchy Fog then Light Rain
|
47°F |
3 to 7 mph
E
|
|
Sunday Night
Nov 1
|
Light Rain
|
38°F |
9 to 25 mph
NNW
|
|
Monday
Nov 2
|
Slight Chance Light Rain then Mostly Sunny
|
46°F |
7 to 25 mph
WNW
|
|
Monday Night
Nov 2
|
Mostly Clear
|
31°F |
5 to 8 mph
WSW
|
|
Tuesday
Nov 3
|
Mostly Sunny
|
60°F |
1 to 5 mph
SW
|
|
Tuesday Night
Nov 3
|
Partly Cloudy
|
36°F |
1 to 8 mph
W
|
|
Wednesday
Nov 4
|
Mostly Sunny
|
53°F |
7 mph
NNW
|
|
Wednesday Night
Nov 4
|
Partly Cloudy
|
34°F |
7 mph
SSW
|
|
Thursday
Nov 5
|
Mostly Sunny
|
55°F |
3 to 7 mph
WSW
|
|
Thursday Night
Nov 5
|
Partly Cloudy
|
36°F |
3 to 9 mph
WSW
|
|
Friday
Nov 6
|
Mostly Sunny then Slight Chance Light Rain
|
57°F |
8 mph
W
|
|
Friday Night
Nov 6
|
Slight Chance Light Rain
|
37°F |
7 to 16 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grass Range.