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

28°C

83°F

Humidity 10%
Wind Speed N 4 MPH
Barometer NA
Dewpoint -6°C (21°F)
Visibility NA
Heat Index27°C (80°F)
Last update 12 Jul 07:15 PM MDT
Extended Forecast for

Mammoth Hot Springs WY

  • Tonight

    Tonight: Clear, with a low around 12. Northwest wind 6 to 11 km/h becoming light and variable after midnight.

    Low: 12 °C

    Clear

  • Sunday

    Sunday: Sunny, with a high near 31. Light and variable wind becoming northwest 11 to 16 km/h in the afternoon.

    High: 31 °C

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 13. Northwest wind 11 to 16 km/h becoming south southwest 5 to 10 km/h after midnight.

    Low: 13 °C

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 32. Light and variable wind becoming west 9 to 14 km/h in the morning.

    High: 32 °C

    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 12. West southwest wind 8 to 13 km/h becoming north northeast in the evening. Chance of precipitation is 30%.

    Low: 12 °C

    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 3pm. Mostly sunny, with a high near 27. North wind 8 to 16 km/h, with gusts as high as 32 km/h. Chance of precipitation is 60%.

    High: 27 °C

    Slight Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 10. North wind 11 to 14 km/h.

    Low: 10 °C

    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 25.

    High: 25 °C

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 8.

    Low: 8 °C

    Slight Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 12. Northwest wind 6 to 11 km/h becoming light and variable after midnight.
Sunday
Sunny, with a high near 31. Light and variable wind becoming northwest 11 to 16 km/h in the afternoon.
Sunday Night
Partly cloudy, with a low around 13. Northwest wind 11 to 16 km/h becoming south southwest 5 to 10 km/h after midnight.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 32. Light and variable wind becoming west 9 to 14 km/h in the morning.
Monday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 12. West southwest wind 8 to 13 km/h 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 27. North wind 8 to 16 km/h, with gusts as high as 32 km/h. Chance of precipitation is 60%.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 10. North wind 11 to 14 km/h.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 25.
Wednesday Night
A 10 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 8.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 28.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 10.
Friday
A slight chance of showers and thunderstorms. Sunny, with a high near 29.
Friday Night
Partly cloudy, with a low around 11.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 31.
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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 m)
Last Update:
8:13 pm MDT Jul 12, 2025
Forecast Valid:
8pm MDT Jul 12, 2025-6pm MDT Jul 19, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation