Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

48°F

9°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 45°F (7°C)
Visibility 9.00 mi
Last update 22 Jan 11:20 PM PST
Extended Forecast for

Castro Valley CA

  • Tonight

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

    Low: 44 °F

    Patchy Fog

  • Friday

    Friday: Patchy dense fog between 7am and 9am.  Otherwise, mostly sunny, with a high near 60. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 60 °F

    Patchy Dense
    Fog then
    Sunny

  • Friday Night

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

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 61. North northeast wind 5 to 9 mph.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. Northeast wind around 6 mph.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 44. Calm wind.
Friday
Patchy dense fog between 7am and 9am. Otherwise, mostly sunny, with a high near 60. Calm wind becoming west northwest around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 42. Calm wind.
Saturday
Sunny, with a high near 61. North northeast wind 5 to 9 mph.
Saturday Night
Mostly clear, with a low around 39. Northeast wind around 6 mph.
Sunday
Mostly cloudy, with a high near 59.
Sunday Night
Mostly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Partly sunny, with a high near 63.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 47.
Wednesday
A chance of rain. Mostly cloudy, with a high near 61.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Castro Valley CA
 37.69°N 122.05°W (Elev. 364 ft)
3:01 pm PST Jan 22, 2026
11pm PST Jan 22, 2026-6pm PST Jan 29, 2026
 
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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