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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

BRENNER (BRRM8)

Lat: 44.93656°NLon: 113.25239°WElev: 6631.0ft.

NA

62°F

17°C

Humidity 28%
Wind Speed SW 23 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 10 Oct 12:47 PM MDT
Extended Forecast for

Grant MT

Winter Weather Advisory October 10, 06:00pm until October 12, 06:00am
Click here for hazard details and duration
Winter Weather Advisory

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 61. South southwest wind 16 to 20 mph becoming northwest. Winds could gust as high as 28 mph.

    High: 61 °F

    Chance
    Showers

  • Tonight

    Tonight: Snow, possibly mixed with rain. Some thunder is also possible. Low around 27. Blustery, with a north northwest wind 15 to 25 mph becoming east after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Blustery.
    Showers
    Likely then
    Rain/Snow

  • Sunday

    Sunday: Snow. High near 30. East northeast wind 9 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 30 °F

    Snow

  • Sunday Night

    Sunday Night: Snow, mainly before 3am. Low around 23. Northeast wind 6 to 11 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 23 °F

    Snow

  • Columbus Day

    Columbus Day: A chance of snow before 3pm, then a chance of rain. Cloudy, with a high near 37. Northeast wind 3 to 6 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48. Calm wind.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 23. Light and variable wind.

    Low: 23 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 61. South southwest wind 16 to 20 mph becoming northwest. Winds could gust as high as 28 mph.
Tonight
Snow, possibly mixed with rain. Some thunder is also possible. Low around 27. Blustery, with a north northwest wind 15 to 25 mph becoming east after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Sunday
Snow. High near 30. East northeast wind 9 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Sunday Night
Snow, mainly before 3am. Low around 23. Northeast wind 6 to 11 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Columbus Day
A chance of snow before 3pm, then a chance of rain. Cloudy, with a high near 37. Northeast wind 3 to 6 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Monday Night
Mostly cloudy, with a low around 23. Calm wind.
Tuesday
Mostly sunny, with a high near 48. Calm wind.
Tuesday Night
Mostly clear, with a low around 23. Light and variable wind.
Wednesday
Sunny, with a high near 54.
Wednesday Night
Mostly clear, with a low around 26.
Thursday
Sunny, with a high near 57.
Thursday Night
Mostly clear, with a low around 26.
Friday
Sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grant MT
 45.01°N 113.07°W (Elev. 5787 ft)
Last Update:
12:32 pm MDT Oct 10, 2026
Forecast Valid:
1pm MDT Oct 10, 2026-6pm MDT Oct 16, 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