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

Mammoth Yosemite Airport (KMMH)

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

Clear

39°F

4°C

Humidity 35%
Wind Speed W 12 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 19 May 11:15 PM PDT
Extended Forecast for

12 Miles ESE Mammoth Lakes CA

  • Tonight

    Tonight: Mostly clear, with a low around 36. West wind around 5 mph becoming calm.

    Low: 36 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66. Calm wind becoming north around 5 mph.

    High: 66 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 71. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 71 °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 around 5 mph becoming calm  in the evening.

    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 11400 feet in the afternoon. Mostly sunny, with a high near 69. Calm wind becoming southwest around 5 mph.

    High: 69 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 36. West wind around 5 mph becoming calm.
Wednesday
Mostly sunny, with a high near 66. Calm wind becoming north around 5 mph.
Wednesday Night
Mostly clear, with a low around 41. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 71. Calm wind becoming northwest around 5 mph in the afternoon.
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 around 5 mph becoming calm in the evening.
Friday
A 20 percent chance of showers after 11am. Snow level 10300 feet rising to 11400 feet in the afternoon. Mostly sunny, with a high near 69. Calm wind becoming southwest around 5 mph.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Sunny, with a high near 72.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 43.
Memorial Day
A slight chance of showers. Sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles ESE Mammoth Lakes CA
 37.57°N 118.78°W (Elev. 7585 ft)
11:30 pm PDT May 19, 2026
11pm PDT May 19, 2026-6pm PDT May 26, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database