Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

Clear

63°F

17°C

Humidity 9%
Wind Speed ESE 4 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Last update 19 Apr 03:55 PM PDT
Extended Forecast for

6 Miles SE Mammoth Lakes CA

Winter Storm Watch April 21, 05:00am until April 22, 05:00pm
Lake Wind Advisory April 20, 11:00am until April 20, 10:00pm
Click here for hazard details and duration
Winter Storm Watch
Lake Wind Advisory
  • Tonight

    Tonight: Partly cloudy, with a low around 30. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph.

    Low: 30 °F

    Partly Cloudy
    and Breezy

  • Monday

    Monday: Mostly sunny, with a high near 45. Windy, with a south wind 25 to 30 mph, with gusts as high as 45 mph.

    High: 45 °F

    Mostly Sunny
    and Windy

  • Monday Night

    Monday Night: Mostly clear, with a low around 28. Very windy, with a southwest wind 30 to 40 mph, with gusts as high as 55 mph.

    Low: 28 °F

    Mostly Clear
    and Very
    Windy

  • Tuesday

    Tuesday: Snow showers, mainly after 11am. The snow could be heavy at times.  High near 34. Very windy, with a south wind 40 to 45 mph, with gusts as high as 70 mph.  Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

    High: 34 °F

    Heavy Snow
    and Very
    Windy

  • Tuesday Night

    Tuesday Night: Snow showers, mainly before 11pm. The snow could be heavy at times.  Low around 17. Very windy, with a southwest wind 45 to 50 mph decreasing to 35 to 40 mph after midnight. Winds could gust as high as 75 mph.  Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    Low: 17 °F

    Very Windy.
    Heavy Snow
    then Chance
    Snow Showers

  • Wednesday

    Wednesday: A 30 percent chance of snow showers.  Mostly sunny, with a high near 30. Windy, with a southwest wind 25 to 30 mph decreasing to 20 to 25 mph in the afternoon. Winds could gust as high as 50 mph.  Little or no snow accumulation expected.

    High: 30 °F

    Chance Snow
    Showers and
    Windy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 17. Breezy.

    Low: 17 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 38.

    High: 38 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 22. Breezy.

    Low: 22 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 30. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph.
Monday
Mostly sunny, with a high near 45. Windy, with a south wind 25 to 30 mph, with gusts as high as 45 mph.
Monday Night
Mostly clear, with a low around 28. Very windy, with a southwest wind 30 to 40 mph, with gusts as high as 55 mph.
Tuesday
Snow showers, mainly after 11am. The snow could be heavy at times. High near 34. Very windy, with a south wind 40 to 45 mph, with gusts as high as 70 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.
Tuesday Night
Snow showers, mainly before 11pm. The snow could be heavy at times. Low around 17. Very windy, with a southwest wind 45 to 50 mph decreasing to 35 to 40 mph after midnight. Winds could gust as high as 75 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Wednesday
A 30 percent chance of snow showers. Mostly sunny, with a high near 30. Windy, with a southwest wind 25 to 30 mph decreasing to 20 to 25 mph in the afternoon. Winds could gust as high as 50 mph. Little or no snow accumulation expected.
Wednesday Night
Mostly clear, with a low around 17. Breezy.
Thursday
Sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 22. Breezy.
Friday
A slight chance of snow showers after 11am. Mostly sunny, with a high near 39.
Friday Night
A slight chance of snow showers. Partly cloudy, with a low around 24. Breezy.
Saturday
A chance of snow showers. Mostly sunny, with a high near 39.
Saturday Night
A slight chance of snow showers. Partly cloudy, with a low around 24.
Sunday
A chance of snow showers. Mostly sunny, with a high near 39.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SE Mammoth Lakes CA
 37.58°N 118.9°W (Elev. 10617 ft)
11:30 am PDT Apr 19, 2026
4pm PDT Apr 19, 2026-6pm PDT Apr 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