Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Northeast; Heavy Rain Returns to California

An Alberta clipper will bring lake effect snow downwind of the Great Lakes, with the highest snow totals downwind of Lakes Erie and Ontario. Snow squalls may impact New Year's Eve travel during the evening and overnight hours across parts of the Great Lakes, Ohio Valley, and Northeast. Heavy rain will bring a flash flooding threat for southern California on New Year's Eve into New Year's Day. Read More >

Current conditions at

Nevada County Air Park (KGOO)

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

Overcast

55°F

13°C

Humidity 22%
Wind Speed N 0 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 31 Dec 02:55 AM PST
Extended Forecast for

Grass Valley CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 44. Light east wind.

    Low: 44 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of rain, mainly after 2pm.  Cloudy, with a high near 56. Calm wind.  New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Rain, mainly after 7pm.  Patchy fog before 9pm, then patchy fog after midnight. Steady temperature around 48. Calm wind.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 48 °F

    Rain and
    Patchy Fog

  • New Year's Day

    New Year's Day: Rain.  High near 52. Calm wind becoming south around 6 mph in the morning.  Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 52 °F

    Rain

  • Thursday Night

    Thursday Night: Rain.  Low around 46. South southeast wind around 6 mph.  Chance of precipitation is 100%.

    Low: 46 °F

    Rain

  • Friday

    Friday: Rain.  High near 53. Chance of precipitation is 80%.

    High: 53 °F

    Rain

  • Friday Night

    Friday Night: Rain. The rain could be heavy at times.  Low around 43. Chance of precipitation is 90%.

    Low: 43 °F

    Heavy Rain

  • Saturday

    Saturday: Rain before 10am, then showers and possibly a thunderstorm after 10am. Some of the storms could produce heavy rainfall.  Cloudy, with a high near 48.

    High: 48 °F

    Heavy Rain

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 10pm, then rain after 10pm.  Cloudy, with a low around 42.

    Low: 42 °F

    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 44. Light east wind.
Wednesday
A 40 percent chance of rain, mainly after 2pm. Cloudy, with a high near 56. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain, mainly after 7pm. Patchy fog before 9pm, then patchy fog after midnight. Steady temperature around 48. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
New Year's Day
Rain. High near 52. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Thursday Night
Rain. Low around 46. South southeast wind around 6 mph. Chance of precipitation is 100%.
Friday
Rain. High near 53. Chance of precipitation is 80%.
Friday Night
Rain. The rain could be heavy at times. Low around 43. Chance of precipitation is 90%.
Saturday
Rain before 10am, then showers and possibly a thunderstorm after 10am. Some of the storms could produce heavy rainfall. Cloudy, with a high near 48.
Saturday Night
Showers and possibly a thunderstorm before 10pm, then rain after 10pm. Cloudy, with a low around 42.
Sunday
Rain before 4pm, then showers and possibly a thunderstorm after 4pm. Cloudy, with a high near 47.
Sunday Night
Rain and possibly a thunderstorm. Cloudy, with a low around 40.
Monday
Rain likely. Mostly cloudy, with a high near 48.
Monday Night
Rain likely. Mostly cloudy, with a low around 38.
Tuesday
A chance of rain. Partly sunny, with a high near 52.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Grass Valley CA
 39.23°N 121.08°W (Elev. 2598 ft)
1:21 am PST Dec 31, 2025
3am PST Dec 31, 2025-6pm PST Jan 6, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database