Weather in Fort Harrison, MT
Updated 2026-09-26 10:00 local time · ZIP codes 59636
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
50°10% rain53°10% rain56°9% rain57°9% rain57°9% rain60°9% rain
60°1% rain
59°2% rain57°1% rain51°1% rain
46°1% rain44°1% 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 10%).
It feels like 45°F with winds near 3 mph.
60°F, 1% rain chance and 12 mph wind.
Visibility is around 6 mi; gusts may reach 20 mph.
Current temperature is 50°F, wind 3 mph, rain chance up to 10%.
UV index is 1.
Local weather characteristics in Fort Harrison
Montana weather varies from relatively dry plains to snowy mountain climates. Cold fronts, strong winds and large day-to-day temperature swings are common.
Fort Harrison is part of the West weather region. The forecast point is near 46.64°N latitude and 112.10°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.
Fort Harrison weather today
Overcast and 50°F in Fort Harrison, MT. Today's high is 60°F with a 3% rain chance. Winds are around 3 mph with gusts near 9 mph. Relative humidity is 40%, pressure is 29.96 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Fort Harrison
Sunrise is at 07:20 AM and sunset is at 07:18 PM. Tomorrow's forecast calls for Overcast with a high near 62°F and a low near 39°F. The maximum rain chance is 10%.