National Weather Service

News Headlines

SCN26-50: Discontinuation of the State Forecast Product (SFP) for all NWS Central Region, Southern Region, and Western Region Offices: Effective June 29, 2026
The Regional Temperatures and Precipitation Product for the State of Montana (RTPMT) will now be discontinued on July 7, 2026.

Current conditions at

Great Falls, Great Falls International Airport (KGTF)

Lat: 47.47333° N Lon: 111.38222° W Elev: 3675.0 ft.

Overcast

46°F

8°C

Humidity	92%
Wind Speed	NW 5 MPH
Barometer	30.28 in (1025.4 mb)
Dewpoint	44°F (7°C)
Visibility	10.00 mi
Wind Chill	44°F (7°C)
Last update	13 Jun 04:53 AM MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Cascade County below 5000ft

Today

Partly sunny. Patchy fog early in the morning. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Highs in the lower 60s. North winds 5 to 10 mph. Chance of precipitation 20 percent.

Tonight

Mostly cloudy. Lows around 40. Northeast winds up to 5 mph shifting to the south after midnight.

Sunday

Sunny. Highs around 70. Southwest winds up to 5 mph shifting to the northeast in the afternoon.

Sunday Night

Mostly clear. Lows in the mid 40s. East winds up to 5 mph shifting to the southwest after midnight.

Monday

Warmer. Mostly sunny. Highs 75 to 81. Southwest winds up to 10 mph.

Monday Night

Warmer. Mostly cloudy. Lows in the mid 50s.

Tuesday

Breezy. Mostly sunny. Highs 80 to 86.

Tuesday Night

Breezy. Partly cloudy. Slight chance of thunderstorms in the evening, then slight chance of rain showers after midnight. Lows in the lower 50s. Chance of precipitation 20 percent.

Wednesday

Cooler. Partly sunny. Chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 66 to 72. Chance of precipitation 50 percent.

Wednesday Night

Partly cloudy. A 20 percent chance of rain showers in the evening. Lows in the mid 40s.

Thursday

Sunny. Highs 71 to 77.

Thursday Night And Juneteenth

Partly cloudy. Lows in the upper 40s. Highs in the mid 70s.