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

Concord, Buchanan Field (KCCR)

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

Clear

66°F

19°C

Humidity 48%
Wind Speed SW 13 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 19 Oct 04:15 PM PDT
Extended Forecast for

Walnut Creek CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. West southwest wind 5 to 8 mph becoming calm after midnight.

    Low: 48 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 70. Light and variable wind.

    High: 70 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers, mainly after 4am. Mostly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers. Mostly cloudy, with a high near 70. Calm wind becoming west around 5 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 51. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A 30 percent chance of showers. Patchy fog before 8am. Otherwise, partly sunny, with a high near 70.

    High: 70 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: Patchy fog between 8am and 9am. Otherwise, sunny, with a high near 73.

    High: 73 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Clear, with a low around 48.

    Low: 48 °F

    Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 48. West southwest wind 5 to 8 mph becoming calm after midnight.
Tuesday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 70. Light and variable wind.
Tuesday Night
A 30 percent chance of showers, mainly after 4am. Mostly cloudy, with a low around 52. Calm wind.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 70. Calm wind becoming west around 5 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 40 percent chance of showers. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 51. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 30 percent chance of showers. Patchy fog before 8am. Otherwise, partly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 49.
Friday
Patchy fog between 8am and 9am. Otherwise, sunny, with a high near 73.
Friday Night
Clear, with a low around 48.
Saturday
Sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 48.
Sunday
Sunny, with a high near 74.
Sunday Night
Mostly clear, with a low around 49.
Monday
Sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Walnut Creek CA
 37.92°N 122.05°W (Elev. 197 ft)
Last Update:
1:47 pm PDT Oct 19, 2026
Forecast Valid:
4pm PDT Oct 19, 2026-6pm PDT Oct 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation