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This Saturday, June 27: Great Falls Disaster Response Expo - FREE and Family-Friendly Event, Great Falls College at MSU
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°NLon: 111.38222°WElev: 3675.0ft.

Clear

40°F

4°C

Humidity	100%
Wind Speed	SW 6 MPH
Barometer	30.3 in (1026.08 mb)
Dewpoint	40°F (4°C)
Visibility	10.00 mi
Wind Chill	36°F (2°C)
Last update	23 Jun 03:53 AM MDT

More Information:

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

Extended Forecast for

Great Falls MT

Today
High: 72 °F
Patchy Fog
then Sunny
Tonight
Low: 47 °F
Increasing
Clouds
Wednesday
High: 76 °F
Partly Sunny
Wednesday Night
Low: 49 °F
Partly Cloudy
Thursday
High: 77 °F
Slight Chance
Showers then
Chance
T-storms
Thursday Night
Low: 50 °F
Slight Chance
T-storms then
Mostly Cloudy
Friday
High: 79 °F
Partly Sunny
then Chance
T-storms
Friday Night
Low: 50 °F
Showers
Likely
Saturday
High: 72 °F
Slight Chance
Showers then
Chance
T-storms

Detailed Forecast

Today

Patchy fog before 9am. Otherwise, sunny, with a high near 72. Calm wind becoming northeast 5 to 7 mph in the afternoon.

Tonight

Increasing clouds, with a low around 47. Northeast wind 5 to 8 mph becoming calm after midnight.

Wednesday

Partly sunny, with a high near 76. Calm wind becoming east northeast 5 to 9 mph in the afternoon.

Wednesday Night

Partly cloudy, with a low around 49. East northeast wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.

Thursday

A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 77. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 50%.

Thursday Night

A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 50. East southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

Friday

A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 79. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

Friday Night

Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 50. Southwest wind 3 to 8 mph.

Saturday

A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 72.

Saturday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 47.

Sunday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 62.

Sunday Night

Showers likely. Mostly cloudy, with a low around 44. Breezy.

Monday

Showers likely. Mostly cloudy, with a high near 65.