Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

DW5868 Mammoth Lakes (D5868)

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

NA

69°F

21°C

Humidity 32%
Wind Speed WSW 3 MPH
Barometer 29.75 in (1007.45 mb)
Dewpoint 38°F (3°C)
Visibility NA
Last update 27 Aug 10:30 AM PDT
Extended Forecast for

Mammoth Lakes CA

  • Today

    Today: A 30 percent chance of showers, mainly after 2pm.  Partly sunny, with a high near 74. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 74 °F

    Chance
    Showers

  • Tonight

    Tonight: A 40 percent chance of showers, mainly between 11pm and 5am.  Mostly cloudy, with a low around 54. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 54 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 11am.  Mostly cloudy, with a high near 66. Southwest wind 5 to 10 mph, with gusts as high as 35 mph.  Chance of precipitation is 70%.

    High: 66 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 11pm, then a slight chance of showers.  Mostly cloudy, then gradually becoming mostly clear, with a low around 49. Southwest wind 5 to 10 mph, with gusts as high as 35 mph.  Chance of precipitation is 60%.

    Low: 49 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers after 11am.  Mostly sunny, with a high near 67. Southwest wind 10 to 15 mph, with gusts as high as 35 mph.

    High: 67 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Clear, with a low around 45. Southwest wind around 10 mph, with gusts as high as 35 mph.

    Low: 45 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers, mainly after 2pm. Partly sunny, with a high near 74. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.
Tonight
A 40 percent chance of showers, mainly between 11pm and 5am. Mostly cloudy, with a low around 54. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 66. Southwest wind 5 to 10 mph, with gusts as high as 35 mph. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm before 11pm, then a slight chance of showers. Mostly cloudy, then gradually becoming mostly clear, with a low around 49. Southwest wind 5 to 10 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.
Saturday
A 20 percent chance of showers after 11am. Mostly sunny, with a high near 67. Southwest wind 10 to 15 mph, with gusts as high as 35 mph.
Saturday Night
Clear, with a low around 45. Southwest wind around 10 mph, with gusts as high as 35 mph.
Sunday
Sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
A slight chance of showers. Snow level 10200 feet rising to 11400 feet in the afternoon. Mostly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth Lakes CA
 37.66°N 118.97°W (Elev. 8301 ft)
4:30 am PDT Aug 27, 2026
10am PDT Aug 27, 2026-6pm PDT Sep 2, 2026
 
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