Coastal Storm Along the East Coast; Pacific Storm System in the West on Friday

A strengthening coastal storm will bring soaking rains to portions of the Mid-Atlantic and Northeast, with accumulating snow likely across the higher elevations of northern New England through Friday. A Pacific storm system will bring heavy low elevation rain, and gusty winds to northern California and the Pacific Northwest, as well as possible blizzard conditions to the Sierra Nevada on Friday. Read More >

Current conditions at

FW3625 San Ramon (F3625)

Lat: 37.738°NLon: 121.945°WElev: 415.09ft.

NA

73°F

23°C

Humidity 39%
Wind Speed N 0 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 47°F (8°C)
Visibility NA
Last update 12 Nov 01:55 PM PST
Extended Forecast for

2 Miles N Castro Valley CA

Coastal Flood Advisory November 12, 02:00pm until November 13, 04:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory November 12, 02:00pm until November 13, 04:00pm

    NOW until 4:00pm Fri

    Coastal Flood Advisory

  • This Afternoon

    High: 72 °F

    Partly Sunny

  • Tonight

    Tonight: A 10 percent chance of rain after 4am.  Increasing clouds, with a low around 54. South wind 8 to 10 mph, with gusts as high as 23 mph.

    Low: 54 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Friday

    Friday: Rain, mainly after 9am.  Temperature falling to around 53 by 5pm. South wind 11 to 17 mph becoming west southwest in the afternoon. Winds could gust as high as 32 mph.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 59 °F⇓

    Rain

  • Friday Night

    Friday Night: A 30 percent chance of rain between 10pm and 1am.  Mostly cloudy, with a low around 47. Southwest wind around 5 mph becoming light and variable  in the evening.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Chance Rain

  • Saturday

    Saturday: Partly sunny, with a high near 62. Light and variable wind becoming west southwest around 5 mph in the afternoon.

    High: 62 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain, mainly after 4pm.  High near 62. Chance of precipitation is 80%.

    High: 62 °F

    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain, mainly before 4am.  Cloudy, with a low around 48.

    Low: 48 °F

    Rain

Detailed Forecast

This Afternoon
Partly sunny, with a high near 72. South southwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
A 10 percent chance of rain after 4am. Increasing clouds, with a low around 54. South wind 8 to 10 mph, with gusts as high as 23 mph.
Friday
Rain, mainly after 9am. Temperature falling to around 53 by 5pm. South wind 11 to 17 mph becoming west southwest in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday Night
A 30 percent chance of rain between 10pm and 1am. Mostly cloudy, with a low around 47. Southwest wind around 5 mph becoming light and variable in the evening. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Partly sunny, with a high near 62. Light and variable wind becoming west southwest around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 48.
Sunday
Rain, mainly after 4pm. High near 62. Chance of precipitation is 80%.
Sunday Night
Rain, mainly before 4am. Cloudy, with a low around 48.
Monday
A chance of rain before 10am. Partly sunny, with a high near 58.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Patchy fog. Otherwise, sunny, with a high near 58.
Tuesday Night
Rain likely. Partly cloudy, with a low around 44.
Wednesday
Rain. Mostly cloudy, with a high near 57.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Castro Valley CA
 37.74°N 122.06°W (Elev. 597 ft)
12:26 pm PST Nov 12, 2026
2pm PST Nov 12, 2026-6pm PST Nov 18, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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