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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Current conditions at

Mammoth Yosemite Airport (KMMH)

Lat: 37.6241°NLon: 118.8423°WElev: 7112.0ft.

Clear

66°F

19°C

Humidity 22%
Wind Speed WNW 12 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 17 Sep 05:15 PM PDT
Extended Forecast for

4 Miles ENE Mammoth Lakes CA

  • Tonight

    Tonight: Clear, with a low around 38. West wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

    Low: 38 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 66. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 38. Northwest wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 70. Calm wind becoming northeast around 5 mph.

    High: 70 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 44. Northeast wind around 5 mph becoming calm.

    Low: 44 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 69. Calm wind becoming east around 5 mph in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers after 11am. Snow level 10300 feet rising to 10900 feet in the afternoon. Mostly sunny, with a high near 67.

    High: 67 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 38. West wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Friday
Sunny, with a high near 66. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 38. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 70. Calm wind becoming northeast around 5 mph.
Saturday Night
Mostly clear, with a low around 44. Northeast wind around 5 mph becoming calm.
Sunday
Mostly sunny, with a high near 69. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 45.
Monday
A slight chance of showers after 11am. Snow level 10300 feet rising to 10900 feet in the afternoon. Mostly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Mammoth Lakes CA
 37.67°N 118.92°W (Elev. 7694 ft)
Last Update:
4:30 pm PDT Sep 17, 2026
Forecast Valid:
5pm PDT Sep 17, 2026-6pm PDT Sep 24, 2026
 
Forecast Discussion
 
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Additional Resources

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