Heavy Rain and Flooding Threat in the Central U.S.; Winter Weather in Northern Alaska

Strong thunderstorms and heavy rain may produce flash flooding across the south-central Plains and lower Mississippi Valley today. The North Slope in Alaska will see the potential for wintry weather through today with ice accumulations possible on roadways. Incoming storms will bring long duration rainfall and strong winds to most of Southcentral Alaska through Friday. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

59°F

15°C

Humidity 88%
Wind Speed NNW 3 MPH
Barometer NA
Dewpoint 56°F (13°C)
Visibility NA
Last update 28 Aug 04:15 PM MDT
Extended Forecast for

Mammoth WY

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely.  Mostly cloudy, with a high near 62. West wind around 5 mph.  Chance of precipitation is 60%.

    High: 62 °F

    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely before midnight, then a slight chance of showers.  Mostly cloudy, with a low around 50. Calm wind becoming south around 5 mph.  Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Friday

    Friday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms after 4pm.  Mostly sunny, with a high near 70. Light and variable wind becoming north northwest 5 to 10 mph in the afternoon.  Chance of precipitation is 20%.

    High: 70 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight.  Partly cloudy, with a low around 48. North northwest wind 5 to 8 mph becoming light and variable  in the evening.  Chance of precipitation is 20%.

    Low: 48 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 75. Calm wind becoming northwest 5 to 8 mph in the afternoon.

    High: 75 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46. North northwest wind 5 to 7 mph becoming light and variable  in the evening.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 80 °F

    Sunny

  • Sunday Night

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

    Low: 49 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

This Afternoon
Showers and thunderstorms likely. Mostly cloudy, with a high near 62. West wind around 5 mph. Chance of precipitation is 60%.
Tonight
Showers and thunderstorms likely before midnight, then a slight chance of showers. Mostly cloudy, with a low around 50. Calm wind becoming south around 5 mph. Chance of precipitation is 60%.
Friday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 70. Light and variable wind becoming north northwest 5 to 10 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 48. North northwest wind 5 to 8 mph becoming light and variable in the evening. Chance of precipitation is 20%.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 75. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 46. North northwest wind 5 to 7 mph becoming light and variable in the evening.
Sunday
Sunny, with a high near 80. Calm wind becoming west northwest around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 49.
Labor Day
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 50.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 81.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 49.
Wednesday
A slight chance of showers and thunderstorms. Sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
3:28 pm MDT Aug 28, 2025
5pm MDT Aug 28, 2025-6pm MDT Sep 4, 2025
 
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Additional Resources

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Hourly Weather Forecast

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