Dangerous, Heat Wave Persists in the Eastern U.S.; Severe Weather Expected in the Central Plains and Mid-Atlantic

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Mid-South, and East Coast. Severe thunderstorms are expected to produce damaging wind gusts from the Upper Ohio Valley into the Mid Atlantic, and across the central Great Plains this afternoon and evening. Large hail and heavy rain is also possible across the Great Plains. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

64°F

18°C

Humidity 34%
Wind Speed SE 4 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 03 Jul 10:15 PM MDT
Extended Forecast for

7 Miles E Mammoth WY

  • Tonight

    Tonight: Mostly clear, with a low around 44. South wind around 5 mph becoming light and variable  after midnight.

    Low: 44 °F

    Mostly Clear

  • Independence Day

    Independence Day: Sunny, with a high near 79. Light and variable wind becoming west southwest 6 to 11 mph in the morning.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47. Southwest wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80. Light and variable wind becoming west southwest 5 to 9 mph in the morning. Winds could gust as high as 21 mph.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 48. West wind 5 to 8 mph becoming calm  in the evening. Winds could gust as high as 20 mph.

    Low: 48 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 80. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 50. East northeast wind 3 to 5 mph.

    Low: 50 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 48.

    Low: 48 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 44. South wind around 5 mph becoming light and variable after midnight.
Independence Day
Sunny, with a high near 79. Light and variable wind becoming west southwest 6 to 11 mph in the morning.
Saturday Night
Mostly clear, with a low around 47. Southwest wind 5 to 10 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 80. Light and variable wind becoming west southwest 5 to 9 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 48. West wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Monday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 50. East northeast wind 3 to 5 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 76.
Tuesday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 48.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 48.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles E Mammoth WY
 44.97°N 110.57°W (Elev. 6781 ft)
10:01 pm MDT Jul 3, 2026
11pm MDT Jul 3, 2026-6pm MDT Jul 10, 2026
 
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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