Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East

Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >

Current conditions at

DW5868 Mammoth Lakes (D5868)

Lat: 37.625°NLon: 118.98°WElev: 7973.0ft.

NA

34°F

1°C

Humidity 44%
Wind Speed W 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 14°F (-10°C)
Visibility NA
Last update 20 May 12:45 AM PDT
Extended Forecast for

4 Miles SE Mammoth Lakes CA

  • Overnight

    Overnight: Mostly clear, with a low around 34. Northwest wind around 5 mph becoming calm.

    Low: 34 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 61. Calm wind becoming west around 5 mph in the afternoon.

    High: 61 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 40. West wind 5 to 10 mph becoming light northwest  in the evening.

    Low: 40 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 66. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 11pm.  Snow level 11600 feet lowering to 10500 feet after midnight . Partly cloudy, with a low around 44. West wind 5 to 10 mph becoming light southwest  in the evening. Winds could gust as high as 20 mph.

    Low: 44 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 11am.  Snow level 10300 feet rising to 11300 feet in the afternoon. Mostly sunny, with a high near 65. Calm wind becoming west around 5 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 65 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 34. Northwest wind around 5 mph becoming calm.
Wednesday
Mostly sunny, with a high near 61. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 40. West wind 5 to 10 mph becoming light northwest in the evening.
Thursday
Sunny, with a high near 66. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
A 20 percent chance of showers before 11pm. Snow level 11600 feet lowering to 10500 feet after midnight . Partly cloudy, with a low around 44. West wind 5 to 10 mph becoming light southwest in the evening. Winds could gust as high as 20 mph.
Friday
A 20 percent chance of showers after 11am. Snow level 10300 feet rising to 11300 feet in the afternoon. Mostly sunny, with a high near 65. Calm wind becoming west around 5 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 44.
Saturday
Sunny, with a high near 67.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Sunny, with a high near 67.
Sunday Night
Partly cloudy, with a low around 40.
Memorial Day
A slight chance of showers. Snow level 10700 feet rising to 11300 feet in the afternoon. Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Sunny, with a high near 59. Windy.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Mammoth Lakes CA
 37.6°N 118.9°W (Elev. 9449 ft)
11:30 pm PDT May 19, 2026
1am PDT May 20, 2026-6pm PDT May 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database