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

Tracking Two Storms Impacting the Central and Eastern U.S. Through This Weekend

Two storm systems will track through the central and eastern U.S. through this weekend with areas of gusty winds, rain, and heavy snow. Severe thunderstorms are forecast Friday from the central Gulf Coast into parts of the lower Mississippi, Tennessee and Ohio Valleys. Heavy to excessive rainfall is forecast from the lower Mississippi River Valley to the Tennessee Valley which may bring flooding. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

43°F

6°C

Humidity 56%
Wind Speed N 0 MPH
Barometer 30.36 in (1028.11 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 09 Jan 01:35 AM PST
Extended Forecast for

Castro Valley CA

  • Overnight

    Overnight: Partly cloudy, with a low around 37. East northeast wind around 5 mph.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 55. East northeast wind around 7 mph.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Areas of frost after 5am. Otherwise, mostly clear, with a low around 35. East northeast wind 3 to 5 mph.

    Low: 35 °F

    Mostly Clear
    then Areas
    Frost

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, mostly sunny, with a high near 56. East northeast wind around 6 mph.

    High: 56 °F

    Areas Frost
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38. Light east northeast wind.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 37. East northeast wind around 5 mph.
Friday
Sunny, with a high near 55. East northeast wind around 7 mph.
Friday Night
Areas of frost after 5am. Otherwise, mostly clear, with a low around 35. East northeast wind 3 to 5 mph.
Saturday
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 56. East northeast wind around 6 mph.
Saturday Night
Mostly cloudy, with a low around 38. Light east northeast wind.
Sunday
Partly sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 59.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Sunny, with a high near 62.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Castro Valley CA
 37.72°N 122.05°W (Elev. 397 ft)
Last Update:
12:26 am PST Jan 9, 2026
Forecast Valid:
1am PST Jan 9, 2026-6pm PST Jan 15, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation