Great Falls, MT Weather Forecast
Cascade County, Montana
Live radar, warnings and storm tracking for Great Falls, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Great Falls
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Great Falls, MT at a glance
Great Falls is home to about 60,422 people in Cascade County, across 23 square miles. It ranks 3rd by population of 29 places in Montana with a forecast here. The nearest neighbour with its own forecast is Helena, 71 miles away.
- County
- Cascade County
- Population
- 60,422 2023 est.
- Land area
- 23 sq mi
- People per sq mi
- 2,612
- Forecast point
- 47.5025°N, 111.3000°W
How well can the network see Great Falls?
The nearest Doppler radar is KTFX (Great Falls, MT), to the SW. Its lowest scan passes about 240 ft above Great Falls. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Great Falls show up clearly. Great Falls is closer to its radar than 99% of US cities.
The closest weather station is KGTF (Great Falls Intl). Close enough that its readings are the conditions in town.
Forecasts near Great Falls
- Helena, MT71 mi
- Shelby, MT74 mi
- Cut Bank, MT92 mi
- Lewistown, MT92 mi
- Deer Lodge, MT102 mi
- Havre, MT104 mi
- Belgrade, MT119 mi
- Bozeman, MT126 mi
Elsewhere in Montana
BillingsMissoulaBozemanButteHelenaKalispellAll Montana forecasts →