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Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Hazardous Weather Conditions

Current conditions at

Malmstrom Air Force Base (KGFA)

Lat: 47.5°NLon: 111.18333°WElev: 3527.0ft.

light snow

32°F

0°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 30°F (-1°C)
Visibility 0.75 mi
Last update 11 Oct 03:55 AM MDT
Extended Forecast for

Sand Coulee MT

Winter Storm Warning October 11, 05:30am until October 12, 06:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning October 11, 05:30am until October 12, 06:00am

    NOW until 6:00am Mon

    Winter Storm Warning

  • Overnight

    Low: 28 °F

    Rain/Snow

  • Sunday

    Sunday: Snow before 9am, then snow, possibly mixed with rain. High near 33. North northeast wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    High: 33 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Snow, possibly mixed with rain, becoming all snow after 7pm. Steady temperature around 30. North northeast wind 5 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 30 °F

    Rain/Snow
    then Snow

  • Columbus Day

    Columbus Day: Snow likely, possibly mixing with rain after 9am, then gradually ending. Cloudy, with a high near 37. Light and variable wind. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 37 °F

    Rain/Snow
    Likely then
    Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 21. Calm wind becoming south around 5 mph after midnight.

    Low: 21 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 43. Southwest wind 3 to 7 mph.

    High: 43 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27. Calm wind becoming south 5 to 8 mph in the evening.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 48. South wind around 9 mph.

    High: 48 °F

    Sunny

Detailed Forecast

Overnight
Snow, possibly mixed with rain. Low around 28. North northeast wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 2 to 4 inches possible.
Sunday
Snow before 9am, then snow, possibly mixed with rain. High near 33. North northeast wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Sunday Night
Snow, possibly mixed with rain, becoming all snow after 7pm. Steady temperature around 30. North northeast wind 5 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Columbus Day
Snow likely, possibly mixing with rain after 9am, then gradually ending. Cloudy, with a high near 37. Light and variable wind. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Monday Night
Partly cloudy, with a low around 21. Calm wind becoming south around 5 mph after midnight.
Tuesday
Sunny, with a high near 43. Southwest wind 3 to 7 mph.
Tuesday Night
Mostly clear, with a low around 27. Calm wind becoming south 5 to 8 mph in the evening.
Wednesday
Sunny, with a high near 48. South wind around 9 mph.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Partly cloudy, with a low around 32.
Friday
Sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 41. Breezy.
Saturday
Sunny, with a high near 67. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sand Coulee MT
 47.4°N 111.16°W (Elev. 3619 ft)
Last Update:
4:42 am MDT Oct 11, 2026
Forecast Valid:
5am MDT Oct 11, 2026-6pm MDT Oct 17, 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