Tropical Moisture Brings Heavy Rain to Southwest; Strong Coastal Low to Impact the East Coast

Deep tropical moisture surging into the Southwest U.S. will lead to widespread showers and thunderstorms capable of producing flash flooding the next several days. A strong coastal low will develop late Friday and is expected to bring flooding, high surf, dangerous rip currents, gusty winds and heavy rain to much of the U.S. East Coast through early next week. Read More >

Current conditions at

BRENNER (BRRM8)

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

NA

43°F

6°C

Humidity 50%
Wind Speed ESE 5 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Wind Chill40°F (4°C)
Last update 10 Oct 01:47 AM MDT
Extended Forecast for

Grant MT

  • Overnight

    Overnight: A 20 percent chance of rain after 5am.  Partly cloudy, with a low around 37. East wind around 6 mph.

    Low: 37 °F

    Slight Chance
    Rain

  • Friday

    Friday: A 20 percent chance of rain before 7am.  Sunny, with a high near 71. Breezy, with an east wind 6 to 11 mph becoming south 19 to 24 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 71 °F

    Slight Chance
    Rain then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: A chance of rain between 10pm and 1am.  Partly cloudy, with a low around 41. Breezy, with a south southeast wind 17 to 22 mph becoming west southwest 6 to 11 mph after midnight. Winds could gust as high as 28 mph.  Chance of precipitation is 30%.

    Low: 41 °F

    Chance Rain
    and Breezy

  • Saturday

    Saturday: Showers and possibly a thunderstorm.  High near 60. South southwest wind 5 to 11 mph.  Chance of precipitation is 90%.

    High: 60 °F

    Showers

  • Saturday Night

    Saturday Night: Rain before midnight, then rain and snow likely. Some thunder is also possible.  Low around 29. West southwest wind 11 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Showers then
    Rain/Snow
    Likely

  • Sunday

    Sunday: Snow likely before 3pm, then a slight chance of rain and snow.  Partly sunny, with a high near 49. West southwest wind 10 to 15 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 49 °F

    Snow Likely
    then Slight
    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: A slight chance of rain and snow before 9pm, then a slight chance of snow.  Mostly cloudy, with a low around 24. West southwest wind 9 to 11 mph becoming southeast after midnight.  Chance of precipitation is 20%.

    Low: 24 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Columbus Day

    Columbus Day: Partly sunny, with a high near 49. Northeast wind 7 to 15 mph, with gusts as high as 20 mph.

    High: 49 °F

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of rain and snow after midnight.  Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

Overnight
A 20 percent chance of rain after 5am. Partly cloudy, with a low around 37. East wind around 6 mph.
Friday
A 20 percent chance of rain before 7am. Sunny, with a high near 71. Breezy, with an east wind 6 to 11 mph becoming south 19 to 24 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
A chance of rain between 10pm and 1am. Partly cloudy, with a low around 41. Breezy, with a south southeast wind 17 to 22 mph becoming west southwest 6 to 11 mph after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 30%.
Saturday
Showers and possibly a thunderstorm. High near 60. South southwest wind 5 to 11 mph. Chance of precipitation is 90%.
Saturday Night
Rain before midnight, then rain and snow likely. Some thunder is also possible. Low around 29. West southwest wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Sunday
Snow likely before 3pm, then a slight chance of rain and snow. Partly sunny, with a high near 49. West southwest wind 10 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday Night
A slight chance of rain and snow before 9pm, then a slight chance of snow. Mostly cloudy, with a low around 24. West southwest wind 9 to 11 mph becoming southeast after midnight. Chance of precipitation is 20%.
Columbus Day
Partly sunny, with a high near 49. Northeast wind 7 to 15 mph, with gusts as high as 20 mph.
Monday Night
A slight chance of rain and snow after midnight. Mostly cloudy, with a low around 25.
Tuesday
A slight chance of rain and snow before noon, then a slight chance of rain. Partly sunny, with a high near 52.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 29.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 56.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 29.
Thursday
A chance of rain and snow. Mostly sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
Grant MT
 45.01°N 113.07°W (Elev. 5787 ft)
2:21 am MDT Oct 10, 2025
2am MDT Oct 10, 2025-6pm MDT Oct 16, 2025
 
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