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

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

Nevada County Air Park (KGOO)

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

Clear

54°F

12°C

Humidity 34%
Wind Speed E 6 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 18 Apr 06:55 AM PDT
Extended Forecast for

4 Miles SE Grass Valley CA

  • Today

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

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 69. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 69 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44. South southwest wind around 5 mph becoming calm in the evening.

    Low: 44 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of rain after 11am. Mostly sunny, with a high near 65. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 65 °F

    Slight Chance
    Rain

  • Monday Night

    Monday Night: Rain likely, mainly after 11pm. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.

    Low: 43 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 51. Chance of precipitation is 90%.

    High: 51 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 11pm, then rain likely after 11pm. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Showers

  • Wednesday

    Wednesday: A chance of rain. Mostly cloudy, with a high near 53.

    High: 53 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 68. Calm wind becoming south southwest around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 48. Calm wind.
Sunday
Partly sunny, with a high near 69. Calm wind becoming south southwest around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 44. South southwest wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of rain after 11am. Mostly sunny, with a high near 65. Calm wind becoming south southwest around 6 mph in the afternoon.
Monday Night
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Tuesday
Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 51. Chance of precipitation is 90%.
Tuesday Night
Showers and possibly a thunderstorm before 11pm, then rain likely after 11pm. Mostly cloudy, with a low around 40.
Wednesday
A chance of rain. Mostly cloudy, with a high near 53.
Wednesday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 40.
Thursday
Mostly sunny, with a high near 60.
Thursday Night
Mostly clear, with a low around 41.
Friday
Sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Grass Valley CA
 39.19°N 121.01°W (Elev. 2477 ft)
Last Update:
2:01 am PDT Apr 18, 2026
Forecast Valid:
7am PDT Apr 18, 2026-6pm PDT Apr 24, 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