Weather in Great Falls, MT
Updated 2026-08-11 11:45 local time · ZIP codes 59401, 59404, 59405
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
69°1% rain85°0% rain87°0% rain88°0% rain89°0% rain88°0% rain87°0% rain86°0% rain82°0% rain
76°0% rain72°0% rain69°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 1%).
It feels like 69°F with winds near 7 mph.
79°F, 1% rain chance and 7 mph wind.
Visibility is around 7 mi; gusts may reach 20 mph.
Current temperature is 69°F, wind 7 mph, rain chance up to 1%.
UV index is 4. Sunscreen and sunglasses are sensible for longer outdoor time.
Great Falls weather today
Sunny and 69°F in Great Falls, MT. Today's high is 89°F with a 1% rain chance. Winds are around 7 mph with gusts near 9 mph. Relative humidity is 56%, pressure is 30.07 inHg, and visibility is about 7 miles.
Tonight and tomorrow in Great Falls
Sunrise is at 06:16 AM and sunset is at 08:44 PM. Tomorrow's forecast calls for Sunny with a high near 80°F and a low near 59°F. The maximum rain chance is 57%.