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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

HEBGEN LAKE (HBRM8)

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

NA

55°F

13°C

Humidity 98%
Wind Speed NE 0 MPH
Barometer NA
Dewpoint 54°F (12°C)
Visibility NA
Last update 28 Aug 09:39 AM MDT
Extended Forecast for

West Yellowstone MT

  • Today

    Today: Showers and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms, mainly between 2pm and 4pm. High near 67. South southwest wind 3 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers after 3am. Low around 40. Southwest wind 5 to 7 mph becoming light and variable in the evening. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 40 °F

    Chance
    Showers then
    Showers

  • Saturday

    Saturday: Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. High near 65. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 65 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 35. South wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 90%.

    Low: 35 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. High near 64. Breezy, with a south wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%.

    High: 64 °F

    Showers then
    Chance
    T-storms and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29. Southwest wind 13 to 18 mph becoming light south after midnight. Winds could gust as high as 28 mph.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69. Light and variable wind becoming southwest 6 to 11 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of showers after midnight. Mostly clear, with a low around 32. Southwest wind 5 to 9 mph becoming calm in the evening.

    Low: 32 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 71.

    High: 71 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Showers and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms, mainly between 2pm and 4pm. High near 67. South southwest wind 3 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, then showers after 3am. Low around 40. Southwest wind 5 to 7 mph becoming light and variable in the evening. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. High near 65. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 35. South wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 90%.
Sunday
Showers and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. High near 64. Breezy, with a south wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%.
Sunday Night
Mostly clear, with a low around 29. Southwest wind 13 to 18 mph becoming light south after midnight. Winds could gust as high as 28 mph.
Monday
Sunny, with a high near 69. Light and variable wind becoming southwest 6 to 11 mph in the afternoon. Winds could gust as high as 22 mph.
Monday Night
A slight chance of showers after midnight. Mostly clear, with a low around 32. Southwest wind 5 to 9 mph becoming calm in the evening.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 71.
Tuesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 33.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 67.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
West Yellowstone MT
 44.67°N 111.09°W (Elev. 6686 ft)
Last Update:
3:56 am MDT Aug 28, 2026
Forecast Valid:
10am MDT Aug 28, 2026-6pm MDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation