Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.

NA

87°F

31°C

Humidity 13%
Wind Speed NNW 4 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Heat Index83°F (28°C)
Last update 08 Aug 01:15 PM MDT
Extended Forecast for

Mammoth WY

Red Flag Warning August 8, 02:13pm until August 9, 09:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning August 8, 02:13pm until August 9, 09:00pm

    NOW until 9:00pm Sun

    Red Flag Warning

  • This Afternoon

    High: 91 °F

    Areas Smoke

  • Tonight

    Tonight: Widespread smoke, mainly between 8pm and 1am. Increasing clouds, with a low around 56. West northwest wind 5 to 10 mph becoming light and variable  after midnight. Winds could gust as high as 23 mph.

    Low: 56 °F

    Smoke

  • Sunday

    Sunday: Areas of smoke. Sunny, with a high near 88. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 88 °F

    Areas Smoke

  • Sunday Night

    Sunday Night: Areas of smoke. Partly cloudy, with a low around 54. West northwest wind 5 to 8 mph becoming light and variable. Winds could gust as high as 21 mph.

    Low: 54 °F

    Areas Smoke

  • Monday

    Monday: Sunny, with a high near 88. Light and variable wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 24 mph.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55. West wind 5 to 9 mph becoming calm  in the evening. Winds could gust as high as 22 mph.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 86. Light and variable wind becoming west northwest 6 to 11 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Areas of smoke. Sunny, with a high near 91. West northwest wind 11 to 13 mph, with gusts as high as 26 mph.
Tonight
Widespread smoke, mainly between 8pm and 1am. Increasing clouds, with a low around 56. West northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 23 mph.
Sunday
Areas of smoke. Sunny, with a high near 88. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Areas of smoke. Partly cloudy, with a low around 54. West northwest wind 5 to 8 mph becoming light and variable. Winds could gust as high as 21 mph.
Monday
Sunny, with a high near 88. Light and variable wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 24 mph.
Monday Night
Partly cloudy, with a low around 55. West wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 22 mph.
Tuesday
Sunny, with a high near 86. Light and variable wind becoming west northwest 6 to 11 mph in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
Mostly cloudy, with a low around 53.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 78.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 75.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
12:31 pm MDT Aug 8, 2026
2pm MDT Aug 8, 2026-6pm MDT Aug 14, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database