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

Tropical Depression Nine Forms; Heavy Rainfall in the Southwest and Southeast this Weekend

Tropical Depression Nine has formed and will continue to slowly move to the north-northwest in the coming days. As the storm passes close to the east coast of Florida, tropical storm conditions are possible Sunday through Monday. Tropical Storm Watches have been issued. Significant uncertainty remains in the track and intensity, but chances for impacts to the Southeast are increasing. Read More >

Current conditions at

HEBGEN LAKE (HBRM8)

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

NA

57°F

14°C

Humidity 30%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 27 Sep 07:39 PM MDT
Extended Forecast for

West Yellowstone MT

  • Tonight

    Tonight: Mostly clear, with a low around 32. South wind 5 to 7 mph becoming calm in the evening.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 72. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 72 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of rain between 9pm and midnight. Mostly cloudy, with a low around 35. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 35 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A chance of rain between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 70. Light and variable wind becoming southwest 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

    High: 70 °F

    Mostly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms, then a chance of rain after 9pm. Mostly cloudy, with a low around 36. South southeast wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.

    Low: 36 °F

    Slight Chance
    T-storms then
    Chance Rain

  • Tuesday

    Tuesday: A chance of rain, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 61. Light south wind becoming south southwest 11 to 16 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 70%.

    High: 61 °F

    Chance Rain
    then Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 31. South wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    Low: 31 °F

    Chance
    T-storms then
    Chance Rain

  • Wednesday

    Wednesday: A chance of rain before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 61. Light south wind becoming southwest 11 to 16 mph in the morning. Winds could gust as high as 29 mph.

    High: 61 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 32. South wind 5 to 7 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 72. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Sunday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of rain between 9pm and midnight. Mostly cloudy, with a low around 35. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.
Monday
A chance of rain between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 70. Light and variable wind becoming southwest 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Monday Night
A slight chance of showers and thunderstorms, then a chance of rain after 9pm. Mostly cloudy, with a low around 36. South southeast wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.
Tuesday
A chance of rain, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 61. Light south wind becoming south southwest 11 to 16 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 70%.
Tuesday Night
A chance of showers and thunderstorms before midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 31. South wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Wednesday
A chance of rain before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 61. Light south wind becoming southwest 11 to 16 mph in the morning. Winds could gust as high as 29 mph.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
A slight chance of rain, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 62.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 29.
Friday
A chance of rain. Mostly cloudy, with a high near 53.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 24.
Saturday
A chance of rain and snow. Partly sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
West Yellowstone MT
 44.67°N 111.09°W (Elev. 6686 ft)
Last Update:
2:52 pm MDT Sep 27, 2025
Forecast Valid:
7pm MDT Sep 27, 2025-6pm MDT Oct 4, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation