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

59°F

15°C

Humidity 12%
Wind Speed ESE 16 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Last update 19 Apr 01:15 PM PDT
Extended Forecast for

10 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
  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 47. Breezy, with a south wind around 20 mph, with gusts as high as 35 mph.

    High: 47 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 31. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.

    Low: 31 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 47. Windy, with a south wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 50 mph.

    High: 47 °F

    Mostly Sunny
    and Windy

  • Monday Night

    Monday Night: Mostly clear, with a low around 29. Windy, with a southwest wind 20 to 30 mph, with gusts as high as 45 mph.

    Low: 29 °F

    Mostly Clear
    and Windy

  • Tuesday

    Tuesday: Snow showers, mainly after 11am. The snow could be heavy at times.  High near 36. Very windy, with a south wind 25 to 35 mph increasing to 35 to 45 mph in the morning. Winds could gust as high as 75 mph.  Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    High: 36 °F

    Heavy Snow
    and Very
    Windy

  • Tuesday Night

    Tuesday Night: Snow showers, mainly before 11pm. The snow could be heavy at times.  Low around 18. Very windy, with a southwest wind 35 to 45 mph decreasing to 25 to 35 mph after midnight. Winds could gust as high as 70 mph.  Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    Low: 18 °F

    Heavy Snow
    and Very
    Windy

  • Wednesday

    Wednesday: A 20 percent chance of snow showers.  Mostly sunny, with a high near 36. Breezy.

    High: 36 °F

    Slight Chance
    Snow Showers
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 19. Breezy.

    Low: 19 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 40.

    High: 40 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 47. Breezy, with a south wind around 20 mph, with gusts as high as 35 mph.
Tonight
Partly cloudy, with a low around 31. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.
Monday
Mostly sunny, with a high near 47. Windy, with a south wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 50 mph.
Monday Night
Mostly clear, with a low around 29. Windy, with a southwest wind 20 to 30 mph, with gusts as high as 45 mph.
Tuesday
Snow showers, mainly after 11am. The snow could be heavy at times. High near 36. Very windy, with a south wind 25 to 35 mph increasing to 35 to 45 mph in the morning. Winds could gust as high as 75 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Tuesday Night
Snow showers, mainly before 11pm. The snow could be heavy at times. Low around 18. Very windy, with a southwest wind 35 to 45 mph decreasing to 25 to 35 mph after midnight. Winds could gust as high as 70 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Wednesday
A 20 percent chance of snow showers. Mostly sunny, with a high near 36. Breezy.
Wednesday Night
Mostly clear, with a low around 19. Breezy.
Thursday
Sunny, with a high near 40.
Thursday Night
Partly cloudy, with a low around 24.
Friday
A slight chance of snow showers. Mostly sunny, with a high near 42.
Friday Night
A slight chance of snow showers. Partly cloudy, with a low around 25.
Saturday
A chance of snow showers. Mostly sunny, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SE Mammoth Lakes CA
 37.54°N 118.83°W (Elev. 9216 ft)
11:30 am PDT Apr 19, 2026
1pm PDT Apr 19, 2026-6pm PDT Apr 25, 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