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

Critical Fire Weather in the High Plains; Heat Continues in the West

Critical fire weather conditions will persist in the central High Plains through Friday as gusty winds and dry conditions continue. The heat wave across the West and Southwest will continue to intensify through the week, with daily and monthly record highs expected to be broken. Read More >

Hazardous Weather Conditions

Current conditions at

Concord, Buchanan Field (KCCR)

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

Clear

70°F

21°C

Humidity 73%
Wind Speed N 0 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 18 Mar 10:35 PM PDT
Extended Forecast for

Walnut Creek CA

Heat Advisory March 18, 10:52pm until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 18, 10:52pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 58 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 94. Calm wind becoming north northeast around 6 mph in the afternoon.

    High: 94 °F

    Sunny

  • Thursday Night

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

    Low: 61 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 96. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 96 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. Southwest wind 3 to 5 mph.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 87.

    High: 87 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 58. Calm wind.
Thursday
Sunny, with a high near 94. Calm wind becoming north northeast around 6 mph in the afternoon.
Thursday Night
Clear, with a low around 61. Light and variable wind.
Friday
Sunny and hot, with a high near 96. Calm wind becoming north northwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 59. Southwest wind 3 to 5 mph.
Saturday
Partly sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Sunny, with a high near 84.
Sunday Night
Mostly clear, with a low around 50.
Monday
Mostly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Walnut Creek CA
 37.92°N 122.07°W (Elev. 184 ft)
Last Update:
9:21 pm PDT Mar 18, 2026
Forecast Valid:
10pm PDT Mar 18, 2026-6pm PDT Mar 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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