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

Tracking Atmospheric River for the West Coast; Space Weather Storming Continues

An atmospheric river will bring threats of gusty to high winds and heavy rainfall to California mainly Thursday into Saturday which may bring areas of flooding and wind damage. Heavy snow will be possible over the Sierra Nevada mountains Thursday into Friday associated with the atmospheric river. Minor to severe geomagnetic storming (space weather) is expected to continue into early Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Concord, Buchanan Field (KCCR)

Lat: 37.99167°NLon: 122.05194°WElev: 23.0ft.

Mostly Cloudy

66°F

19°C

Humidity 63%
Wind Speed SE 5 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 13 Nov 12:00 AM PST
Extended Forecast for

2 Miles NW Walnut Creek CA

Wind Advisory until November 13, 04:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until November 13, 04:00pm

    NOW until 4:00pm Thu

    Wind Advisory

  • Overnight

    Low: 60 °F

    Rain

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 67. South southeast wind 14 to 20 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 67 °F

    Showers

  • Thursday Night

    Thursday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 52. South southwest wind 5 to 10 mph becoming light southeast after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Rain Likely

  • Friday

    Friday: A 30 percent chance of rain. Mostly sunny, with a high near 67. East wind around 5 mph becoming north in the afternoon. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Chance Rain

  • Friday Night

    Friday Night: A 20 percent chance of rain. Partly cloudy, with a low around 50. Calm wind. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A 20 percent chance of rain. Partly sunny, with a high near 67. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain. Mostly cloudy, with a high near 64.

    High: 64 °F

    Chance Rain

Detailed Forecast

Overnight
Rain, with thunderstorms also possible after 4am. Low around 60. South southeast wind 3 to 6 mph. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and possibly a thunderstorm before 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 67. South southeast wind 14 to 20 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Thursday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 52. South southwest wind 5 to 10 mph becoming light southeast after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 30 percent chance of rain. Mostly sunny, with a high near 67. East wind around 5 mph becoming north in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 20 percent chance of rain. Partly cloudy, with a low around 50. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 20 percent chance of rain. Partly sunny, with a high near 67. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 53.
Sunday
A chance of rain. Mostly cloudy, with a high near 64.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 51.
Monday
A chance of rain, mainly before 4pm. Partly sunny, with a high near 62.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Walnut Creek CA
 37.92°N 122.07°W (Elev. 184 ft)
Last Update:
11:21 pm PST Nov 12, 2025
Forecast Valid:
12am PST Nov 13, 2025-6pm PST Nov 19, 2025
 
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