Severe Weather Possible from the Central Plains to the Northeast; Building Heat in the West; Fire Weather Concerns for the Southwest

Severe thunderstorms are possible from the Ohio Valley to the central Plains this evening, and the threat will expand into the Mid-Atlantic and Northeast on Monday. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Hot and dry conditions will fuel fire weather concerns for Alaska through this evening and for the Four Corners region through Monday. Read More >

Current conditions at

Nevada County Air Park (KGOO)

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

Clear

79°F

26°C

Humidity 36%
Wind Speed SSW 6 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 21 Jun 04:15 PM PDT
Extended Forecast for

Grass Valley CA

  • Tonight

    Tonight: Clear, with a low around 58. Light and variable wind.

    Low: 58 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 61. Light and variable wind.

    Low: 61 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 61. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 61 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 58. Light and variable wind.
Monday
Sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Clear, with a low around 61. Light and variable wind.
Tuesday
Sunny, with a high near 87. Calm wind becoming west southwest around 6 mph in the afternoon.
Tuesday Night
Clear, with a low around 61. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Clear, with a low around 61.
Thursday
Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny, with a high near 78.
Friday Night
Clear, with a low around 55.
Saturday
Sunny, with a high near 75.
Saturday Night
Clear, with a low around 55.
Sunday
Sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Grass Valley CA
 39.23°N 121.08°W (Elev. 2598 ft)
2:00 pm PDT Jun 21, 2026
4pm PDT Jun 21, 2026-6pm PDT Jun 28, 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