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

Areas of Heavy to Excessive Rainfall and Hot Temperatures This Week

Heavy to excessive rainfall could bring areas of flooding at times Monday through Thursday across parts of the central Plains into the Midwest as well as southern Arizona and New Mexico. Hot temperatures and high humidity will continue across much of east Texas into the lower and mid-Mississippi Valley through at least midweek. Read More >

Current conditions at

Concord, Buchanan Field (KCCR)

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

Clear

63°F

17°C

Humidity 72%
Wind Speed S 6 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 14 Sep 12:30 AM PDT
Extended Forecast for

Walnut Creek CA

  • Overnight

    Overnight: Mostly clear, with a low around 56. South wind 3 to 5 mph.

    Low: 56 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. South southwest wind around 7 mph.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85. West southwest wind 6 to 8 mph.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. Southwest wind around 9 mph, with gusts as high as 18 mph.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 56. South wind 3 to 5 mph.
Monday
Sunny, with a high near 89. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Monday Night
Mostly clear, with a low around 56. South southwest wind around 7 mph.
Tuesday
Sunny, with a high near 85. West southwest wind 6 to 8 mph.
Tuesday Night
Mostly clear, with a low around 57. Southwest wind around 9 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 57.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 57.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Mostly sunny, with a high near 84.
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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:
11:27 pm PDT Sep 13, 2026
Forecast Valid:
12am PDT Sep 14, 2026-6pm PDT Sep 20, 2026
 
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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