Weather in Harrison, MT
Updated 2026-08-11 09:15 local time · ZIP codes 59735
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
65°0% rain69°0% rain73°0% rain76°0% rain78°0% rain80°0% rain82°1% rain83°1% rain
82°1% rain82°1% rain79°2% rain78°1% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 2%).
It feels like 59°F with winds near 2 mph.
69°F, 0% rain chance and 2 mph wind.
Visibility is around 6 mi; gusts may reach 18 mph.
Current temperature is 65°F, wind 2 mph, rain chance up to 2%.
UV index is 2.
Harrison weather today
Sunny and 65°F in Harrison, MT. Today's high is 83°F with a 1% rain chance. Winds are around 2 mph with gusts near 3 mph. Relative humidity is 19%, pressure is 29.99 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Harrison
Sunrise is at 06:23 AM and sunset is at 08:42 PM. Tomorrow's forecast calls for Sunny with a high near 79°F and a low near 56°F. The maximum rain chance is 36%.