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

Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

Clear

57°F

14°C

Humidity 41%
Wind Speed N 0 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 34°F (1°C)
Visibility 8.00 mi
Last update 20 Aug 12:15 AM PDT
Extended Forecast for

12 Miles E Mammoth Lakes CA

  • Overnight

    Overnight: Mostly clear, with a low around 52. North wind around 5 mph becoming calm.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52. West wind 5 to 10 mph becoming light and variable in the evening.

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 86. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 86 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 50. West wind 5 to 10 mph becoming light in the evening.

    Low: 50 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 84. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 84.

    High: 84 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 52. North wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 90. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 52. West wind 5 to 10 mph becoming light and variable in the evening.
Friday
Partly sunny, with a high near 86. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 50. West wind 5 to 10 mph becoming light in the evening.
Saturday
Mostly sunny, with a high near 84. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 48.
Sunday
Increasing clouds, with a high near 84.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles E Mammoth Lakes CA
 37.65°N 118.74°W (Elev. 6778 ft)
Last Update:
11:30 pm PDT Aug 19, 2026
Forecast Valid:
12am PDT Aug 20, 2026-6pm PDT Aug 26, 2026
 
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