Excessive Heat for the East; Excessive Rainfall for the Southwest; Severe Weather for the Center of the Nation

Extreme HeatRisk impacts will expand from the Midwest into the Mid-Atlantic and Northeast today. This level of HeatRisk is known for being rare and/or long duration with little to no overnight relief, and affects anyone without effective cooling and/or adequate hydration. Severe weather potential continues from the Great Lakes to the Central Plains today. Heavy rainfall for Southwest on Tuesday. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NP (YLAW4)

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

NA

55°F

13°C

Humidity 37%
Wind Speed SSW 6 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 23 Jun 12:15 PM MDT
Extended Forecast for

Mammoth WY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 65. Southwest wind 8 to 11 mph.

    High: 65 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 38. Southwest wind 5 to 10 mph becoming northwest in the evening.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Isolated showers and thunderstorms before 4pm, then isolated showers and thunderstorms after 5pm.  Increasing clouds, with a high near 73. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.  Chance of precipitation is 20%.

    High: 73 °F

    Sunny then
    Isolated
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 43. Southwest wind 5 to 11 mph becoming east in the evening.

    Low: 43 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 77. South southeast wind 5 to 10 mph becoming southwest in the morning. Winds could gust as high as 20 mph.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. Southwest wind 6 to 10 mph becoming south southeast after midnight. Winds could gust as high as 20 mph.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 80. Breezy, with a south southeast wind 6 to 11 mph becoming southwest 12 to 17 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 80 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 80. Breezy.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 65. Southwest wind 8 to 11 mph.
Tonight
Mostly clear, with a low around 38. Southwest wind 5 to 10 mph becoming northwest in the evening.
Tuesday
Isolated showers and thunderstorms before 4pm, then isolated showers and thunderstorms after 5pm. Increasing clouds, with a high near 73. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 43. Southwest wind 5 to 11 mph becoming east in the evening.
Wednesday
Sunny, with a high near 77. South southeast wind 5 to 10 mph becoming southwest in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 47. Southwest wind 6 to 10 mph becoming south southeast after midnight. Winds could gust as high as 20 mph.
Thursday
Mostly sunny, with a high near 80. Breezy, with a south southeast wind 6 to 11 mph becoming southwest 12 to 17 mph in the afternoon. Winds could gust as high as 31 mph.
Thursday Night
Partly cloudy, with a low around 50.
Friday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80. Breezy.
Friday Night
Partly cloudy, with a low around 50.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
12:28 pm MDT Jun 23, 2025
12pm MDT Jun 23, 2025-6pm MDT Jun 29, 2025
 
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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