Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

45°F

7°C

Humidity 77%
Wind Speed SE 2 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 29 Jun 01:15 PM MDT
Extended Forecast for

5 Miles WNW Mammoth Hot Springs WY

  • This Afternoon

    This Afternoon: Rain and snow showers, becoming all rain after 3pm. Some thunder is also possible.  Snow level 8700 feet rising to 9700 feet. High near 42. Breezy, with a west southwest wind 14 to 21 mph, with gusts as high as 31 mph.  Chance of precipitation is 90%. Total daytime snow accumulation of around an inch possible.

    High: 42 °F

    Rain/Snow and
    Breezy

  • Tonight

    Tonight: A chance of showers and thunderstorms before 9pm, then a slight chance of showers.  Mostly cloudy, with a low around 36. Breezy, with a west southwest wind 8 to 18 mph, with gusts as high as 25 mph.  Chance of precipitation is 40%.

    Low: 36 °F

    Chance
    Showers and
    Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 54. Southwest wind 7 to 13 mph.

    High: 54 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms between 7pm and 8pm.  Partly cloudy, with a low around 36. South southwest wind 7 to 13 mph.  Chance of precipitation is 10%.

    Low: 36 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon.  Sunny, with a high near 60. Southwest wind 7 to 14 mph, with gusts as high as 32 mph.

    High: 60 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 39. South wind 8 to 14 mph, with gusts as high as 31 mph.

    Low: 39 °F

    Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A 10 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 63. Breezy, with a southwest wind 8 to 16 mph, with gusts as high as 34 mph.

    High: 63 °F

    Sunny then
    Slight Chance
    T-storms and
    Breezy

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 42.

    Low: 42 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 63. Breezy.

    High: 63 °F

    Partly Sunny
    then Chance
    T-storms and
    Breezy

Detailed Forecast

This Afternoon
Rain and snow showers, becoming all rain after 3pm. Some thunder is also possible. Snow level 8700 feet rising to 9700 feet. High near 42. Breezy, with a west southwest wind 14 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. Total daytime snow accumulation of around an inch possible.
Tonight
A chance of showers and thunderstorms before 9pm, then a slight chance of showers. Mostly cloudy, with a low around 36. Breezy, with a west southwest wind 8 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Tuesday
Partly sunny, with a high near 54. Southwest wind 7 to 13 mph.
Tuesday Night
A slight chance of showers and thunderstorms between 7pm and 8pm. Partly cloudy, with a low around 36. South southwest wind 7 to 13 mph. Chance of precipitation is 10%.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 60. Southwest wind 7 to 14 mph, with gusts as high as 32 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 39. South wind 8 to 14 mph, with gusts as high as 31 mph.
Thursday
A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 63. Breezy, with a southwest wind 8 to 16 mph, with gusts as high as 34 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42.
Friday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 63. Breezy.
Friday Night
A 50 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 40.
Independence Day
Sunny, with a high near 65.
Saturday Night
Clear, with a low around 42.
Sunday
Sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Mammoth Hot Springs WY
 44.99°N 110.81°W (Elev. 8094 ft)
12:32 pm MDT Jun 29, 2026
1pm MDT Jun 29, 2026-6pm MDT Jul 5, 2026
 
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Additional Resources

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