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

54°F

12°C

Humidity 76%
Wind Speed N 0 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 46°F (8°C)
Visibility 9.00 mi
Last update 23 Jan 05:00 PM PST
Extended Forecast for

Castro Valley CA

  • Tonight

    Tonight: Mostly clear, with a low around 42. Light and variable wind becoming northeast around 5 mph after midnight.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 61. North northeast wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. East northeast wind 6 to 9 mph.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly cloudy, with a high near 59. East wind around 5 mph becoming west southwest in the afternoon.

    High: 59 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 43. East wind around 8 mph.

    Low: 43 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain after 4am.  Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 42. Light and variable wind becoming northeast around 5 mph after midnight.
Saturday
Sunny, with a high near 61. North northeast wind 8 to 11 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 39. East northeast wind 6 to 9 mph.
Sunday
Mostly cloudy, with a high near 59. East wind around 5 mph becoming west southwest in the afternoon.
Sunday Night
Mostly cloudy, with a low around 43. East wind around 8 mph.
Monday
Mostly sunny, with a high near 63.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
A slight chance of rain after 4am. Mostly cloudy, with a low around 45.
Wednesday
A chance of rain, mainly between 10am and 4pm. Partly sunny, with a high near 62.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 46.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Castro Valley CA
 37.69°N 122.05°W (Elev. 364 ft)
12:26 pm PST Jan 23, 2026
5pm PST Jan 23, 2026-6pm PST Jan 30, 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