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

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

58°F

14°C

Humidity 35%
Wind Speed SSW 6 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 10 Aug 03:15 AM MDT
Extended Forecast for

Mammoth WY

  • Today

    Today: Widespread smoke, mainly before 4pm. Sunny, with a high near 87. Light and variable wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 87 °F

    Smoke

  • Tonight

    Tonight: Widespread smoke, mainly between 8pm and 2am. Mostly clear, with a low around 54. West wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 21 mph.

    Low: 54 °F

    Smoke

  • Tuesday

    Tuesday: Areas of smoke before 7am. Sunny, with a high near 88. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 88 °F

    Areas Smoke
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 56. West northwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 21 mph.

    Low: 56 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 83. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 83 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 53. Northwest wind 5 to 7 mph becoming light and variable in the evening. Chance of precipitation is 20%.

    Low: 53 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 77. Light and variable wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%.

    High: 77 °F

    Partly Sunny
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Cloudy, with a low around 52. Chance of precipitation is 60%.

    Low: 52 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. High near 72. Chance of precipitation is 80%.

    High: 72 °F

    Chance
    Showers then
    Showers

Detailed Forecast

Today
Widespread smoke, mainly before 4pm. Sunny, with a high near 87. Light and variable wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 23 mph.
Tonight
Widespread smoke, mainly between 8pm and 2am. Mostly clear, with a low around 54. West wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 21 mph.
Tuesday
Areas of smoke before 7am. Sunny, with a high near 88. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.
Tuesday Night
Mostly cloudy, with a low around 56. West northwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 21 mph.
Wednesday
Partly sunny, with a high near 83. Calm wind becoming west 5 to 8 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 53. Northwest wind 5 to 7 mph becoming light and variable in the evening. Chance of precipitation is 20%.
Thursday
Showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 77. Light and variable wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Cloudy, with a low around 52. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after noon. High near 72. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 73.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 48.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
2:47 am MDT Aug 10, 2026
Forecast Valid:
4am MDT Aug 10, 2026-6pm MDT Aug 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation