Extreme Heat Across the Southern U.S.; Severe Thunderstorms and Heavy Rain in the Northern Plains and Upper Midwest

Dangerous heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms will produce damaging winds and heavy rainfall over portions of the northern/central Plains into the mid/upper-Mississippi Valleys today. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

58°F

14°C

Humidity 67%
Wind Speed S 5 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 30 Jul 05:15 AM MDT
Extended Forecast for

2 Miles NNW Mt Washburn WY

  • Today

    Today: A 10 percent chance of showers and thunderstorms after 5pm.  Areas of smoke. Sunny, with a high near 73. Light and variable wind becoming west 5 to 9 mph in the afternoon.

    High: 73 °F

    Areas Smoke
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: Patchy smoke. Mostly cloudy during the early evening, then becoming mostly clear, with a low around 51. West wind 5 to 7 mph becoming south after midnight.

    Low: 51 °F

    Patchy Smoke

  • Friday

    Friday: Sunny, with a high near 74. Light and variable wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52. West northwest wind 5 to 7 mph becoming light and variable.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80. South southeast wind 6 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 29 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56. South wind 8 to 13 mph, with gusts as high as 28 mph.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78. Breezy, with a south wind 7 to 12 mph becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 78 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 49. Breezy.

    Low: 49 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Monday

    Monday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

Detailed Forecast

Today
A 10 percent chance of showers and thunderstorms after 5pm. Areas of smoke. Sunny, with a high near 73. Light and variable wind becoming west 5 to 9 mph in the afternoon.
Tonight
Patchy smoke. Mostly cloudy during the early evening, then becoming mostly clear, with a low around 51. West wind 5 to 7 mph becoming south after midnight.
Friday
Sunny, with a high near 74. Light and variable wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 52. West northwest wind 5 to 7 mph becoming light and variable.
Saturday
Sunny, with a high near 80. South southeast wind 6 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 29 mph.
Saturday Night
Mostly clear, with a low around 56. South wind 8 to 13 mph, with gusts as high as 28 mph.
Sunday
Sunny, with a high near 78. Breezy, with a south wind 7 to 12 mph becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 38 mph.
Sunday Night
Mostly clear, with a low around 49. Breezy.
Monday
Sunny, with a high near 69.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Mt Washburn WY
 44.81°N 110.45°W (Elev. 8199 ft)
5:47 am MDT Jul 30, 2026
6am MDT Jul 30, 2026-6pm MDT Aug 5, 2026
 
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Additional Resources

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