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

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

Lat: 37.66083°NLon: 122.11833°WElev: 46.0ft.

Partly Cloudy

46°F

8°C

Humidity 87%
Wind Speed NE 6 MPH
Barometer 30.31 in (1026.41 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 07 Dec 10:00 AM PST
Extended Forecast for

2 Miles SW Castro Valley CA

Coastal Flood Advisory December 7, 10:18am until December 7, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory December 7, 10:18am until December 7, 03:00pm

    NOW until 3:00pm Sun

    Coastal Flood Advisory

  • Today

    High: 62 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 43. Calm wind becoming east northeast around 6 mph in the evening.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 63. Calm wind becoming west northwest 5 to 8 mph in the morning.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 62. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 62 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Wednesday Night

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

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Today
Mostly sunny, with a high near 62. Calm wind becoming west 5 to 8 mph in the afternoon.
Tonight
Mostly clear, with a low around 43. Calm wind becoming east northeast around 6 mph in the evening.
Monday
Sunny, with a high near 63. Calm wind becoming west northwest 5 to 8 mph in the morning.
Monday Night
Mostly clear, with a low around 45. Calm wind.
Tuesday
Mostly sunny, with a high near 62. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Patchy fog before 8am. Otherwise, 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
Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Castro Valley CA
 37.69°N 122.1°W (Elev. 174 ft)
Last Update:
2:33 am PST Dec 7, 2025
Forecast Valid:
10am PST Dec 7, 2025-6pm PST Dec 13, 2025
 
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