Weather in Fort Harrison, MT
Updated 2026-08-11 10:00 local time · ZIP codes 59636
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
64°0% rain82°0% rain85°0% rain87°0% rain89°0% rain89°0% rain89°0% rain89°0% rain88°0% rain86°0% rain81°0% rain
75°0% 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 0%).
It feels like 64°F with winds near 2 mph.
64°F, 0% rain chance and 2 mph wind.
Visibility is around 6 mi; gusts may reach 17 mph.
Current temperature is 64°F, wind 2 mph, rain chance up to 0%.
UV index is 3. Sunscreen and sunglasses are sensible for longer outdoor time.
Fort Harrison weather today
Sunny and 64°F in Fort Harrison, MT. Today's high is 89°F with a 0% rain chance. Winds are around 2 mph with gusts near 3 mph. Relative humidity is 32%, pressure is 30.10 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Fort Harrison
Sunrise is at 06:21 AM and sunset is at 08:45 PM. Tomorrow's forecast calls for Sunny with a high near 77°F and a low near 50°F. The maximum rain chance is 36%.