Grass Range, MT Weather Forecast
Local 7-day forecast
Partly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Grass Range, MT in one place.
A chance of rain showers between noon and 3pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 75. West southwest wind 8 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
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: Apr 20, 2026 1:58 AM MDT.
The active forecast window currently covers Apr 22 to Apr 26, 2026 for Grass Range, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 22 to Apr 26, 2026
- Latest sync
- Apr 20, 2026 1:58 AM MDT
- Forecast office
- TFX
- Source
- NOAA / NWS
Daily Outlook
This Week in Grass Range
Wednesday looks like the warmest upcoming period in Grass Range at 75 degrees F.
Friday Night is the coolest period ahead with temperatures near 23 degrees F.
The strongest winds are forecast for Thursday at about 38 to 41 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 20, 2026 1:58 AM MDT
- Coverage
- 5 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
Showers and thunderstorms before 9pm, then rain between 9pm and 3am, then rain and snow. Cloudy, with a low around 33. West northwest wind 20 to 35 mph, with gusts as high as 43 mph.
Rain and snow likely. Mostly cloudy, with a high near 39. Northwest wind 38 to 41 mph, with gusts as high as 51 mph. New snow accumulation of 1 to 2 inches possible.
A chance of snow. Mostly cloudy, with a low around 27.
A chance of snow. Partly sunny, with a high near 38. New snow accumulation of less than half an inch possible.
Mostly cloudy, with a low around 23.
Mostly sunny, with a high near 42.
Mostly cloudy, with a low around 24.
A slight chance of snow after noon. Partly sunny, with a high near 45.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 22
|
Partly Sunny then Chance Showers And Thunderstorms
|
75°F |
8 to 18 mph
WSW
|
|
Wednesday Night
Apr 22
|
Showers And Thunderstorms then Rain And Snow
|
33°F |
20 to 35 mph
WNW
|
|
Thursday
Apr 23
|
Rain And Snow Likely
|
39°F |
38 to 41 mph
NW
|
|
Thursday Night
Apr 23
|
Chance Light Snow
|
27°F |
17 to 31 mph
NW
|
|
Friday
Apr 24
|
Chance Light Snow
|
38°F |
18 to 26 mph
NW
|
|
Friday Night
Apr 24
|
Mostly Cloudy
|
23°F |
10 to 22 mph
NW
|
|
Saturday
Apr 25
|
Mostly Sunny
|
42°F |
10 to 17 mph
WNW
|
|
Saturday Night
Apr 25
|
Mostly Cloudy
|
24°F |
6 to 14 mph
WNW
|
|
Sunday
Apr 26
|
Partly Sunny then Slight Chance Light Snow
|
45°F |
7 to 12 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grass Range.