Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

Clear

50°F

10°C

Humidity 46%
Wind Speed W 5 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 20 May 09:35 PM PDT
Extended Forecast for

12 Miles ESE Mammoth Lakes CA

  • Tonight

    Tonight: Mostly clear, with a low around 41. West wind around 5 mph becoming calm.

    Low: 41 °F

    Mostly Clear

  • Thursday

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

    High: 71 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44. West wind 5 to 10 mph becoming light  in the evening.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 11am.  Snow level 9800 feet rising to 11100 feet in the afternoon. Mostly sunny, with a high near 70. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 70 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming clear, with a low around 43. West wind around 5 mph becoming calm  in the evening.

    Low: 43 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 72. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 72 °F

    Sunny

  • Saturday Night

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

    Low: 43 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Sunday Night

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

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 41. West wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 71. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 44. West wind 5 to 10 mph becoming light in the evening.
Friday
A 20 percent chance of showers after 11am. Snow level 9800 feet rising to 11100 feet in the afternoon. Mostly sunny, with a high near 70. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Mostly cloudy, then gradually becoming clear, with a low around 43. West wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 72. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 43.
Memorial Day
Sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Sunny, with a high near 67. Breezy.
Tuesday Night
Mostly clear, with a low around 36. Breezy.
Wednesday
Sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles ESE Mammoth Lakes CA
 37.57°N 118.78°W (Elev. 7585 ft)
4:30 pm PDT May 20, 2026
10pm PDT May 20, 2026-6pm PDT May 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database