Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

EW9980 West Yellowstone (E9980)

Lat: 44.78167°NLon: 111.13833°WElev: 6566.77ft.

NA

78°F

26°C

Humidity 29%
Wind Speed SW 2 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 43°F (6°C)
Visibility NA
Heat Index78°F (26°C)
Last update 27 Aug 02:30 PM MDT
Extended Forecast for

8 Miles NNW West Yellowstone MT

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 78. South southwest wind around 10 mph, with gusts as high as 22 mph.

    High: 78 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 10pm.  Mostly cloudy, with a low around 48. Southwest wind 5 to 9 mph becoming calm  in the evening. Winds could gust as high as 22 mph.

    Low: 48 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm.  High near 68. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 80%.

    High: 68 °F

    Chance
    Showers then
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers after 2am.  Low around 45. West southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 90%.

    Low: 45 °F

    Chance
    Showers then
    Showers

  • Saturday

    Saturday: Showers, with thunderstorms also possible after noon.  High near 63. South wind 3 to 8 mph. Winds could gust as high as 20 mph.  Chance of precipitation is 90%.

    High: 63 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm.  Low around 41. South wind 3 to 7 mph. Winds could gust as high as 20 mph.  Chance of precipitation is 90%.

    Low: 41 °F

    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon.  Mostly cloudy, with a high near 64. South wind 5 to 15 mph, with gusts as high as 29 mph.  Chance of precipitation is 70%.

    High: 64 °F

    Showers
    Likely then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. Southwest wind 8 to 13 mph becoming light and variable  after midnight. Winds could gust as high as 26 mph.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 78. South southwest wind around 10 mph, with gusts as high as 22 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 48. Southwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 22 mph.
Friday
Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. High near 68. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 80%.
Friday Night
A chance of showers and thunderstorms, then showers after 2am. Low around 45. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%.
Saturday
Showers, with thunderstorms also possible after noon. High near 63. South wind 3 to 8 mph. Winds could gust as high as 20 mph. Chance of precipitation is 90%.
Saturday Night
Showers and possibly a thunderstorm. Low around 41. South wind 3 to 7 mph. Winds could gust as high as 20 mph. Chance of precipitation is 90%.
Sunday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 64. South wind 5 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 70%.
Sunday Night
Mostly clear, with a low around 36. Southwest wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 26 mph.
Monday
Sunny, with a high near 68.
Monday Night
A slight chance of showers before midnight. Partly cloudy, with a low around 39.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 69.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 39.
Wednesday
A chance of showers. Mostly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNW West Yellowstone MT
 44.77°N 111.2°W (Elev. 6601 ft)
12:31 pm MDT Aug 27, 2026
2pm MDT Aug 27, 2026-6pm MDT Sep 2, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database