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

Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Hazardous Weather Conditions

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

Clear

43°F

6°C

Humidity 65%
Wind Speed N 0 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 10 Apr 07:55 AM PDT
Extended Forecast for

10 Miles ESE Mammoth Lakes CA

Winter Storm Warning April 11, 02:00pm until April 12, 11:00pm
Click here for hazard details and duration
Winter Storm Warning

  • Today

    Today: A 40 percent chance of snow showers after 11am. Some thunder is also possible. Mostly sunny, with a high near 48. Windy, with a southwest wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 40 mph. Total daytime snow accumulation of less than a half inch possible.

    High: 48 °F

    Chance Snow
    Showers and
    Windy

  • Tonight

    Tonight: A 50 percent chance of snow showers before 2am. Some thunder is also possible. Partly cloudy, with a low around 23. Windy, with a southwest wind 25 to 30 mph, with gusts as high as 40 mph. New snow accumulation of less than one inch possible.

    Low: 23 °F

    Chance Snow
    Showers and
    Windy

  • Saturday

    Saturday: A 30 percent chance of snow showers, mainly after 11am. Mostly sunny, with a high near 45. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 40 mph. New snow accumulation of less than a half inch possible.

    High: 45 °F

    Chance Snow
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Snow showers, mainly after 11pm. The snow could be heavy at times. Low around 20. Windy, with a south wind 30 to 35 mph, with gusts as high as 50 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

    Low: 20 °F

    Heavy Snow
    and Windy

  • Sunday

    Sunday: Snow showers. High near 33. Windy, with a southwest wind 30 to 35 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 33 °F

    Snow Showers
    and Windy

  • Sunday Night

    Sunday Night: A 50 percent chance of snow showers. Mostly cloudy, with a low around 16. Windy, with a southwest wind 25 to 30 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 45 mph. New snow accumulation of around an inch possible.

    Low: 16 °F

    Chance Snow
    Showers and
    Windy

  • Monday

    Monday: A 30 percent chance of snow showers, mainly after 11am. Partly sunny, with a high near 38. Little or no snow accumulation expected.

    High: 38 °F

    Chance Snow
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

Detailed Forecast

Today
A 40 percent chance of snow showers after 11am. Some thunder is also possible. Mostly sunny, with a high near 48. Windy, with a southwest wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 40 mph. Total daytime snow accumulation of less than a half inch possible.
Tonight
A 50 percent chance of snow showers before 2am. Some thunder is also possible. Partly cloudy, with a low around 23. Windy, with a southwest wind 25 to 30 mph, with gusts as high as 40 mph. New snow accumulation of less than one inch possible.
Saturday
A 30 percent chance of snow showers, mainly after 11am. Mostly sunny, with a high near 45. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 40 mph. New snow accumulation of less than a half inch possible.
Saturday Night
Snow showers, mainly after 11pm. The snow could be heavy at times. Low around 20. Windy, with a south wind 30 to 35 mph, with gusts as high as 50 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.
Sunday
Snow showers. High near 33. Windy, with a southwest wind 30 to 35 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Sunday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 16. Windy, with a southwest wind 25 to 30 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 45 mph. New snow accumulation of around an inch possible.
Monday
A 30 percent chance of snow showers, mainly after 11am. Partly sunny, with a high near 38. Little or no snow accumulation expected.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
Sunny, with a high near 45.
Tuesday Night
Mostly clear, with a low around 25.
Wednesday
Sunny, with a high near 50.
Wednesday Night
Partly cloudy, with a low around 28.
Thursday
Mostly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles ESE Mammoth Lakes CA
 37.57°N 118.81°W (Elev. 10469 ft)
Last Update:
4:31 am PDT Apr 10, 2026
Forecast Valid:
8am PDT Apr 10, 2026-6pm PDT Apr 16, 2026
 
Forecast Discussion
 
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Additional Resources

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