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.

Clear

32°F

0°C

Humidity 85%
Wind Speed ESE 4 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 12 Oct 07:53 PM MDT
Extended Forecast for

6 Miles WSW Ulm 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. Otherwise, mostly cloudy, with a low around 20. South wind around 6 mph.

    Low: 20 °F

    Patchy Dense
    Fog

  • Tuesday

    Tuesday: Patchy dense fog before noon. Otherwise, mostly sunny, with a high near 42. South southwest wind around 7 mph.

    High: 42 °F

    Patchy Dense
    Fog then
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 19. South southwest wind 3 to 7 mph.

    Low: 19 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 50. Light south southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 50 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31. Southwest wind 3 to 6 mph.

    Low: 31 °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 30. Calm wind becoming south around 6 mph after midnight.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 69. South southwest wind 8 to 17 mph, with gusts as high as 28 mph.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy dense fog. Otherwise, mostly cloudy, with a low around 20. South wind around 6 mph.
Tuesday
Patchy dense fog before noon. Otherwise, mostly sunny, with a high near 42. South southwest wind around 7 mph.
Tuesday Night
Partly cloudy, with a low around 19. South southwest wind 3 to 7 mph.
Wednesday
Sunny, with a high near 50. Light south southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 31. Southwest wind 3 to 6 mph.
Thursday
Sunny, with a high near 57. Calm wind.
Thursday Night
Mostly clear, with a low around 30. Calm wind becoming south around 6 mph after midnight.
Friday
Sunny, with a high near 69. South southwest wind 8 to 17 mph, with gusts as high as 28 mph.
Friday Night
Mostly clear, with a low around 40.
Saturday
Mostly sunny, with a high near 72. Breezy.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Mostly sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 37.
Monday
Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Ulm MT
 47.4°N 111.63°W (Elev. 3524 ft)
Last Update:
4:26 pm MDT Oct 12, 2026
Forecast Valid:
8pm 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