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

Heavy to Excessive Rainfall for the Southwest U.S.; Watching for Possible East Coast Storm

Thunderstorms and a chance for some isolated flash flooding will continue today in the Southwest U.S. before an influx of tropical moisture from Priscilla brings widespread heavy rainfall and a flash flooding threat late this week into this weekend. A coastal storm may develop off the southeast U.S. coast Friday night and drift north just off the Mid-Atlantic coast through the weekend. Read More >

Current conditions at

HEBGEN LAKE (HBRM8)

Lat: 44.66597°NLon: 111.09911°WElev: 6700.0ft.

NA

60°F

16°C

Humidity 24%
Wind Speed SW 5 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Last update 08 Oct 03:39 PM MDT
Extended Forecast for

West Yellowstone MT

  • Tonight

    Tonight: Mostly clear, with a low around 23. Southwest wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.

    Low: 23 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 68. Light southeast wind becoming south southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after midnight. Increasing clouds, with a low around 31. South southwest wind around 6 mph becoming light and variable after midnight.

    Low: 31 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers. Partly sunny, with a high near 66. Light and variable wind becoming south southwest 6 to 11 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 66 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 34. South wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 34 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Saturday

    Saturday: Showers, with thunderstorms also possible after noon. High near 57. South southwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%.

    High: 57 °F

    Showers

  • Saturday Night

    Saturday Night: Rain showers likely before 9pm, then rain and snow showers likely between 9pm and 3am, then snow likely after 3am. Some thunder is also possible. Mostly cloudy, with a low around 22. South southwest wind 10 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 22 °F

    Rain/Snow
    Likely

  • Sunday

    Sunday: Snow likely before noon, then snow showers likely after noon. Some thunder is also possible. Mostly cloudy, with a high near 40. South southwest wind 8 to 16 mph, with gusts as high as 28 mph.

    High: 40 °F

    Snow Likely

  • Sunday Night

    Sunday Night: A chance of snow showers before midnight, then a chance of snow after midnight. Some thunder is also possible. Mostly cloudy, with a low around 17.

    Low: 17 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 23. Southwest wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.
Thursday
Sunny, with a high near 68. Light southeast wind becoming south southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
A 20 percent chance of showers after midnight. Increasing clouds, with a low around 31. South southwest wind around 6 mph becoming light and variable after midnight.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 66. Light and variable wind becoming south southwest 6 to 11 mph in the afternoon. Winds could gust as high as 22 mph.
Friday Night
A 50 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 34. South wind 7 to 9 mph, with gusts as high as 18 mph.
Saturday
Showers, with thunderstorms also possible after noon. High near 57. South southwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%.
Saturday Night
Rain showers likely before 9pm, then rain and snow showers likely between 9pm and 3am, then snow likely after 3am. Some thunder is also possible. Mostly cloudy, with a low around 22. South southwest wind 10 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Sunday
Snow likely before noon, then snow showers likely after noon. Some thunder is also possible. Mostly cloudy, with a high near 40. South southwest wind 8 to 16 mph, with gusts as high as 28 mph.
Sunday Night
A chance of snow showers before midnight, then a chance of snow after midnight. Some thunder is also possible. Mostly cloudy, with a low around 17.
Columbus Day
A chance of snow before noon, then a chance of rain and snow. Partly sunny, with a high near 46.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 21.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 48.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 21.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
West Yellowstone MT
 44.67°N 111.09°W (Elev. 6686 ft)
Last Update:
2:13 am MDT Oct 8, 2025
Forecast Valid:
3pm MDT Oct 8, 2025-6pm MDT Oct 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation