Heavy Rainfall Continues in Hawaii; Severe Thunderstorms and Heavy Rainfall in the Plains and Southern Appalachians

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorms and heavy rainfall will shift into the southern Appalachians today. Strong to severe thunderstorms may produce large hail, scattered wind gusts, and heavy rain today across the northern and central Plains. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

56°F

13°C

Humidity 69%
Wind Speed S 2 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 17 Aug 08:15 AM MDT
Extended Forecast for

Mammoth WY

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 1pm.  Increasing clouds, with a high near 78. Light and variable wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 78 °F

    Partly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers after 2am.  Mostly cloudy, with a low around 51. West northwest wind around 6 mph becoming light and variable  after midnight.  Chance of precipitation is 30%.

    Low: 51 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 4pm.  Partly sunny, with a high near 77. Calm wind becoming west 5 to 7 mph in the afternoon.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 49. Northwest wind around 6 mph becoming light and variable  in the evening.

    Low: 49 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 79. Light and variable wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50. West wind 5 to 8 mph becoming light and variable  in the evening. Winds could gust as high as 21 mph.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 84. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Increasing clouds, with a high near 78. Light and variable wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
A chance of showers and thunderstorms before 11pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 51. West northwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 30%.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 77. Calm wind becoming west 5 to 7 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 50 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 49. Northwest wind around 6 mph becoming light and variable in the evening.
Wednesday
Sunny, with a high near 79. Light and variable wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 50. West wind 5 to 8 mph becoming light and variable in the evening. Winds could gust as high as 21 mph.
Thursday
Sunny, with a high near 84. Calm wind becoming west 5 to 8 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 87.
Friday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 56.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 83.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
6:17 am MDT Aug 17, 2026
9am MDT Aug 17, 2026-6pm MDT Aug 23, 2026
 
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Additional Resources

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Hourly Weather Forecast

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