National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Great Falls, Great Falls International Airport (KGTF)

Lat: 47.47333°NLon: 111.38222°WElev: 3675.0ft.

Partly Cloudy

30°F

-1°C

Humidity 92%
Wind Speed WSW 3 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 12 Oct 03:20 PM MDT
Extended Forecast for

Great Falls MT

Dense Fog Advisory October 12, 09:00pm until October 13, 12:00pm
Click here for hazard details and duration
Dense Fog Advisory

  • Tonight

    Tonight: Patchy dense fog between 9pm and 3am. Otherwise, mostly cloudy, with a low around 22. South wind 5 to 9 mph becoming west southwest after midnight.

    Low: 22 °F

    Patchy Dense
    Fog

  • Tuesday

    Tuesday: Mostly sunny, with a high near 42. West southwest wind 8 to 10 mph.

    High: 42 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 21. South southwest wind 6 to 8 mph.

    Low: 21 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 50. South southwest wind 6 to 10 mph, with gusts as high as 22 mph.

    High: 50 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 34. Southwest wind 3 to 6 mph.

    Low: 34 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 57. Calm wind.

    High: 57 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34. Calm wind becoming south 5 to 7 mph after midnight.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 71. South wind 8 to 17 mph, with gusts as high as 29 mph.

    High: 71 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy dense fog between 9pm and 3am. Otherwise, mostly cloudy, with a low around 22. South wind 5 to 9 mph becoming west southwest after midnight.
Tuesday
Mostly sunny, with a high near 42. West southwest wind 8 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 21. South southwest wind 6 to 8 mph.
Wednesday
Sunny, with a high near 50. South southwest wind 6 to 10 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 34. Southwest wind 3 to 6 mph.
Thursday
Sunny, with a high near 57. Calm wind.
Thursday Night
Mostly clear, with a low around 34. Calm wind becoming south 5 to 7 mph after midnight.
Friday
Sunny, with a high near 71. South wind 8 to 17 mph, with gusts as high as 29 mph.
Friday Night
Mostly clear, with a low around 44.
Saturday
Mostly sunny, with a high near 73. Breezy.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 40.
Monday
Mostly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Great Falls MT
 47.51°N 111.31°W (Elev. 3399 ft)
Last Update:
12:31 pm MDT Oct 12, 2026
Forecast Valid:
3pm MDT Oct 12, 2026-6pm MDT Oct 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation