Weather in Grass Range, MT
Updated 2026-09-26 10:15 local time · ZIP codes 59032
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
61°0% rain64°0% rain67°1% rain
69°6% rain69°5% rain69°1% rain
71°4% rain
71°9% rain66°9% rain62°9% rain
62°9% rain60°8% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 9%).
It feels like 49°F with winds near 13 mph.
69°F, 1% rain chance and 10 mph wind.
Visibility is around 6 mi; gusts may reach 21 mph.
Current temperature is 61°F, wind 13 mph, rain chance up to 9%.
UV index is 2.
Local weather characteristics in Grass Range
Montana weather varies from relatively dry plains to snowy mountain climates. Cold fronts, strong winds and large day-to-day temperature swings are common.
Grass Range is part of the West weather region. The forecast point is near 47.03°N latitude and 108.80°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Grass Range weather today
Sunny and 61°F in Grass Range, MT. Today's high is 71°F with a 3% rain chance. Winds are around 13 mph with gusts near 20 mph. Relative humidity is 23%, pressure is 29.89 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Grass Range
Sunrise is at 07:07 AM and sunset is at 07:05 PM. Tomorrow's forecast calls for Overcast with a high near 63°F and a low near 47°F. The maximum rain chance is 17%.