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

Strong Storms and Heavy Rainfall Threats; Dangerous Heat for Southern Plains into the Southwest

Thunderstorms, some severe, will impact areas of the Plains into the Midwest today. Rainfall can be locally heavy as well from these storms with isolated instances of flash flooding. Monsoonal flow will enhance rainfall across the Four Corners into the central Rockies today. Meanwhile, summer heat continues for the southern Plains, Southwest into southern California. Read More >

Current conditions at

Nevada County Air Park (KGOO)

Lat: 39.224028°NLon: 121.003083°WElev: 3154.0ft.

Clear

86°F

30°C

Humidity 17%
Wind Speed S 4 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 25 Aug 12:55 PM PDT
Extended Forecast for

Alta Sierra CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 91. Southwest wind around 6 mph.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 93. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65. Light and variable wind.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 92. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 67.

    Low: 67 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of rain. Partly sunny, with a high near 87.

    High: 87 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 91. Southwest wind around 6 mph.
Tonight
Partly cloudy, with a low around 64. Calm wind.
Wednesday
Sunny, with a high near 93. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 65. Light and variable wind.
Thursday
Sunny, with a high near 92. Calm wind becoming west southwest around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 67.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 63.
Saturday
Sunny, with a high near 86.
Saturday Night
Clear, with a low around 58.
Sunday
Sunny, with a high near 84.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alta Sierra CA
 39.14°N 121.05°W (Elev. 2195 ft)
Last Update:
11:31 am PDT Aug 25, 2026
Forecast Valid:
1pm PDT Aug 25, 2026-6pm PDT Aug 31, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation