Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Concord, Buchanan Field (KCCR)

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

Clear

46°F

8°C

Humidity 70%
Wind Speed N 0 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 18 Apr 05:20 AM PDT
Extended Forecast for

Walnut Creek CA

  • Today

    Today: Sunny, with a high near 79. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. Light south southwest wind.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 74. West southwest wind 3 to 8 mph.

    High: 74 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 49. West southwest wind 5 to 9 mph, with gusts as high as 18 mph.

    Low: 49 °F

    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of showers.  Partly sunny, with a high near 73. South wind 5 to 8 mph.  New precipitation amounts between a tenth and quarter of an inch possible.

    High: 73 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 11pm, then showers after 11pm.  Low around 51. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Showers

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 11am.  High near 64. Chance of precipitation is 90%.

    High: 64 °F

    Showers

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Rain Likely

  • Wednesday

    Wednesday: A chance of rain.  Partly sunny, with a high near 66.

    High: 66 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 79. Calm wind becoming west northwest around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 50. Light south southwest wind.
Sunday
Partly sunny, with a high near 74. West southwest wind 3 to 8 mph.
Sunday Night
Partly cloudy, with a low around 49. West southwest wind 5 to 9 mph, with gusts as high as 18 mph.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 73. South wind 5 to 8 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Showers likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 11pm, then showers after 11pm. Low around 51. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Showers, with thunderstorms also possible after 11am. High near 64. Chance of precipitation is 90%.
Tuesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 48.
Wednesday
A chance of rain. Partly sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Walnut Creek CA
 37.92°N 122.05°W (Elev. 197 ft)
1:41 am PDT Apr 18, 2026
5am PDT Apr 18, 2026-6pm PDT Apr 24, 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