Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

Concord, Buchanan Field (KCCR)

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

Clear

50°F

10°C

Humidity 76%
Wind Speed ENE 5 MPH
Barometer 30.31 in (1026.41 mb)
Dewpoint 43°F (6°C)
Visibility 7.00 mi
Wind Chill48°F (9°C)
Last update 08 Dec 03:00 PM PST
Extended Forecast for

4 Miles E Hercules CA

  • Tonight

    Tonight: Patchy fog between 8pm and midnight.  Otherwise, increasing clouds, with a low around 42. Light east wind.

    Low: 42 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 50. East northeast wind around 6 mph.

    High: 50 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44. Light northeast wind.

    Low: 44 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60. Northeast wind around 6 mph.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog before 1am.  Otherwise, mostly clear, with a low around 44. Light northeast wind.

    Low: 44 °F

    Patchy Fog

  • Thursday

    Thursday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog between 8pm and midnight. Otherwise, increasing clouds, with a low around 42. Light east wind.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 50. East northeast wind around 6 mph.
Tuesday Night
Partly cloudy, with a low around 44. Light northeast wind.
Wednesday
Mostly sunny, with a high near 60. Northeast wind around 6 mph.
Wednesday Night
Patchy fog before 1am. Otherwise, mostly clear, with a low around 44. Light northeast wind.
Thursday
Mostly sunny, with a high near 60.
Thursday Night
Mostly clear, with a low around 43.
Friday
Mostly sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 42.
Saturday
Mostly sunny, with a high near 59.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Partly sunny, with a high near 58.
Sunday Night
Mostly cloudy, with a low around 47.
Monday
A slight chance of rain. Mostly cloudy, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Hercules CA
 38.01°N 122.18°W (Elev. 597 ft)
12:26 pm PST Dec 8, 2025
3pm PST Dec 8, 2025-6pm PST Dec 15, 2025
 
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Additional Resources

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