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

MAMMOTH AT YELLOWSTONE NP (YLAW4)

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

NA

83°F

28°C

Humidity 10%
Wind Speed N 4 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Heat Index80°F (27°C)
Last update 12 Jul 07:15 PM MDT
Extended Forecast for

Mammoth Hot Springs WY

  • Tonight

    Tonight: Clear, with a low around 53. North northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 53 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 87. Calm wind becoming northwest 5 to 8 mph in the afternoon.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89. Calm wind becoming west 5 to 9 mph in the afternoon.

    High: 89 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 54. West southwest wind 5 to 8 mph becoming north northeast in the evening. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 3pm. Mostly sunny, with a high near 81. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 81 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 50. North wind 7 to 9 mph.

    Low: 50 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 77.

    High: 77 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 47.

    Low: 47 °F

    Slight Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 53. North northwest wind 5 to 8 mph becoming calm in the evening.
Sunday
Sunny, with a high near 87. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 56. Northwest wind 5 to 7 mph becoming calm in the evening.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89. Calm wind becoming west 5 to 9 mph in the afternoon.
Monday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 54. West southwest wind 5 to 8 mph becoming north northeast in the evening. Chance of precipitation is 30%.
Tuesday
Showers likely, with thunderstorms also possible after 3pm. Mostly sunny, with a high near 81. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 50. North wind 7 to 9 mph.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 77.
Wednesday Night
A 10 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 47.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 83.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 50.
Friday
A slight chance of showers and thunderstorms. Sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 51.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mammoth Hot Springs WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
5:43 pm MDT Jul 12, 2025
Forecast Valid:
7pm MDT Jul 12, 2025-6pm MDT Jul 19, 2025
 
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Additional Resources

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Chance of Precipitation