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

San Francisco Bay Oakland International Airport (KOAK)

Lat: 37.72126°NLon: 122.22115°WElev: 9.0ft.

Partly Cloudy

48°F

9°C

Humidity 79%
Wind Speed E 3 MPH
Barometer 30.36 in (1028.11 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 08 Dec 09:53 AM PST
Extended Forecast for

San Leandro CA

  • Today

    Today: Sunny, with a high near 60. North northwest wind 3 to 5 mph.

    High: 60 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 5am.  Otherwise, mostly clear, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog between 7am and 9am.  Otherwise, sunny, with a high near 63. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 63 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 5am.  Otherwise, mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 8am.  Otherwise, sunny, with a high near 67. Calm wind becoming north around 6 mph in the afternoon.

    High: 67 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 60. North northwest wind 3 to 5 mph.
Tonight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 44. Calm wind.
Tuesday
Patchy fog between 7am and 9am. Otherwise, sunny, with a high near 63. Calm wind becoming north northwest around 5 mph in the afternoon.
Tuesday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 46. Calm wind.
Wednesday
Patchy fog before 8am. Otherwise, sunny, with a high near 67. Calm wind becoming north around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 67.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 66.
Friday Night
Mostly clear, with a low around 46.
Saturday
Patchy fog. Otherwise, sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Patchy fog. Otherwise, partly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
San Leandro CA
 37.73°N 122.14°W (Elev. 184 ft)
6:22 am PST Dec 8, 2025
10am PST Dec 8, 2025-6pm PST Dec 14, 2025
 
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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