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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

DW5868 Mammoth Lakes (D5868)

Lat: 37.625°NLon: 118.98°WElev: 7973.0ft.

NA

40°F

4°C

Humidity 52%
Wind Speed W 2 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 24°F (-4°C)
Visibility NA
Last update 20 Sep 04:30 AM PDT
Extended Forecast for

Mammoth Lakes CA

  • Today

    Today: Partly sunny, with a high near 68. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 68 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 49. Southwest wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Cloudy

  • Monday

    Monday: A 40 percent chance of showers, mainly after 2pm. Patchy smoke before 11am. Snow level 10600 feet rising to 11100 feet in the afternoon. Partly sunny, with a high near 61. Calm wind becoming southwest around 5 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 61 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers before 11pm. Snow level 11000 feet. Partly cloudy, with a low around 44. Southwest wind around 5 mph becoming calm.

    Low: 44 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 62. Calm wind becoming north around 5 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 62 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46. Northwest wind around 5 mph becoming calm.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 68. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 49. Southwest wind around 5 mph becoming calm in the evening.
Monday
A 40 percent chance of showers, mainly after 2pm. Patchy smoke before 11am. Snow level 10600 feet rising to 11100 feet in the afternoon. Partly sunny, with a high near 61. Calm wind becoming southwest around 5 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
A 20 percent chance of showers before 11pm. Snow level 11000 feet. Partly cloudy, with a low around 44. Southwest wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 62. Calm wind becoming north around 5 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 46. Northwest wind around 5 mph becoming calm.
Wednesday
Sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 66.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mammoth Lakes CA
 37.66°N 118.97°W (Elev. 8301 ft)
Last Update:
4:30 am PDT Sep 20, 2026
Forecast Valid:
5am PDT Sep 20, 2026-6pm PDT Sep 26, 2026
 
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Additional Resources

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Chance of Precipitation