National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Excessive Rainfall and Severe Thunderstorms Friday

Heavy thunderstorms may bring areas of excessive rainfall and locally considerable flooding over parts of the Ozarks into the lower-Mississippi River Valley Friday and Saturday. Scattered severe thunderstorms may occur Friday from Montana into the central Plains, with hail and corridors of damaging winds possible. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NP (YLAW4)

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

NA

51°F

11°C

Humidity 70%
Wind Speed W 3 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 13 Jun 04:15 AM MDT
Extended Forecast for

Mammoth WY

  • Today

    Today: Sunny, with a high near 79. Breezy, with a light and variable wind becoming southwest 12 to 17 mph in the morning. Winds could gust as high as 25 mph.

    High: 79 °F

    Sunny then
    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 47. Southwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 79. Breezy, with a south southeast wind 5 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.

    High: 79 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50. Southwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. Light and variable wind becoming southwest 8 to 13 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday 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 50. Southwest wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 20%.

    Low: 50 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 80. Light and variable wind becoming west southwest 8 to 13 mph in the morning. Winds could gust as high as 22 mph.

    High: 80 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72. Chance of precipitation is 50%.

    High: 72 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 79. Breezy, with a light and variable wind becoming southwest 12 to 17 mph in the morning. Winds could gust as high as 25 mph.
Tonight
Mostly clear, with a low around 47. Southwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Saturday
Mostly sunny, with a high near 79. Breezy, with a south southeast wind 5 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.
Saturday Night
Mostly clear, with a low around 50. Southwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Sunday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. Light and variable wind becoming southwest 8 to 13 mph in the afternoon. Winds could gust as high as 23 mph.
Sunday 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 50. Southwest wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 20%.
Monday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 80. Light and variable wind becoming west southwest 8 to 13 mph in the morning. Winds could gust as high as 22 mph.
Monday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 48.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72. Chance of precipitation is 50%.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Sunny, with a high near 76. Breezy.
Wednesday Night
Mostly clear, with a low around 46.
Juneteenth
Sunny, with a high near 80. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
3:43 am MDT Jun 13, 2025
Forecast Valid:
4am MDT Jun 13, 2025-6pm MDT Jun 19, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation