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

Inclement Weather in the Pacific Northwest; Severe Thunderstorms in the Southeast; Impending Winter Storm

An approaching storm will bring rain and high elevation snow to Pacific Northwest through the weekend. Isolated severe thunderstorms are possible across parts of the Southeast today into this evening as a low strengthens over the Southeast. This system will form into a winter storm on Sunday that will bring heavy snow, high winds, and coastal flooding to the Mid-Atlantic and Northeast into Monday. Read More >

Hazardous Weather Conditions

Current conditions at

Port Chicago (PCOC1)

Lat: 38.056°NLon: 122.0395°WElev: 0.0ft.

NA

40°F

4°C

Humidity NA
Wind Speed SSE 1 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

5 Miles NW Concord CA

Cold Weather Advisory February 21, 07:33am until February 21, 09:00am
Click here for hazard details and duration
...
  •  
    Cold Weather Advisory February 21, 07:33am until February 21, 09:00am

    NOW until 9:00am Sat

    Cold Weather Advisory

  • Today

    High: 59 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 42. South wind around 7 mph.

    Low: 42 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 63. East wind around 6 mph.

    High: 63 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 44. West northwest wind around 5 mph becoming calm in the evening.

    Low: 44 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 63. East northeast wind 3 to 6 mph.

    High: 63 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 50 percent chance of rain. Cloudy, with a low around 54. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain. High near 60. Chance of precipitation is 80%.

    High: 60 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly before 10pm. Cloudy, with a low around 53.

    Low: 53 °F

    Rain

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 59. East northeast wind 5 to 9 mph becoming south in the afternoon.
Tonight
Partly cloudy, with a low around 42. South wind around 7 mph.
Sunday
Partly sunny, with a high near 63. East wind around 6 mph.
Sunday Night
Mostly cloudy, with a low around 44. West northwest wind around 5 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 63. East northeast wind 3 to 6 mph.
Monday Night
A 50 percent chance of rain. Cloudy, with a low around 54. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Rain. High near 60. Chance of precipitation is 80%.
Tuesday Night
Rain, mainly before 10pm. Cloudy, with a low around 53.
Wednesday
A chance of rain. Mostly cloudy, with a high near 62.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 49.
Thursday
A slight chance of rain. Partly sunny, with a high near 65.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Concord CA
 38.04°N 122.05°W (Elev. 3 ft)
Last Update:
7:14 am PST Feb 21, 2026
Forecast Valid:
7am PST Feb 21, 2026-6pm PST Feb 27, 2026
 
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