Thunderstorms and Heavy Rains in the Appalachians

Multiple rounds of moderate to locally heavy rain will impact portions of the Appalachians and Mid-Atlantic, which may lead to flash flooding concerns. Thunderstorms with isolated severe wind gusts will be possible this afternoon from parts of the Southeast into the southern and central Appalachians. A multi-day heavy rain will pose a flash flood threat in New Mexico beginning Tuesday. Read More >

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

Clear

64°F

18°C

Humidity 18%
Wind Speed SE 5 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 21°F (-6°C)
Visibility 9.00 mi
Last update 21 Sep 10:55 AM PDT
Extended Forecast for

6 Miles E Mammoth Lakes CA

  • Today

    Today: A 40 percent chance of showers.  Partly sunny, with a high near 67. Southeast wind around 10 mph, with gusts as high as 20 mph.

    High: 67 °F

    Chance
    Showers

  • Tonight

    Tonight: A 40 percent chance of showers before 11pm.  Patchy smoke between 10pm and 11pm. Partly cloudy, with a low around 37. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 37 °F

    Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: Patchy smoke after 4pm. Sunny, with a high near 70. Light and variable wind becoming north 5 to 10 mph in the afternoon.

    High: 70 °F

    Sunny then
    Patchy Smoke

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41. North wind around 5 mph becoming calm  in the evening.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73. Calm wind becoming east around 5 mph in the afternoon.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42. Southeast wind around 5 mph becoming calm  in the evening.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Today
A 40 percent chance of showers. Partly sunny, with a high near 67. Southeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
A 40 percent chance of showers before 11pm. Patchy smoke between 10pm and 11pm. Partly cloudy, with a low around 37. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Patchy smoke after 4pm. Sunny, with a high near 70. Light and variable wind becoming north 5 to 10 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 41. North wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 73. Calm wind becoming east around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 42. Southeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 41.
Friday
Sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 38.
Saturday
Sunny, with a high near 74.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles E Mammoth Lakes CA
 37.65°N 118.86°W (Elev. 7241 ft)
4:30 am PDT Sep 21, 2026
11am PDT Sep 21, 2026-6pm PDT Sep 27, 2026
 
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Additional Resources

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