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

Arctic Air for the Northeast and Mid-Atlantic; Increase Moisture for Pacific Northwest; Active Pattern for Hawaii

An arctic cold front will impact the Great Lakes, Northeast and mid-Atlantic. Snow showers and squalls will accompany this system with increasing winds and falling temperatures. Damaging wind gusts may result in tree damage and power outages. Meanwhile, moisture returns for the Pacific Northwest and Hawaii this weekend with both coverage and intensity of rainfall and higher elevation snows. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Mist

54°F

12°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.31 in (1026.41 mb)
Dewpoint 50°F (10°C)
Visibility 3.00 mi
Last update 07 Feb 09:35 AM PST
Extended Forecast for

3 Miles WNW Castro Valley CA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 65. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 65 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 48. Light and variable wind.

    Low: 48 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 65. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 65 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 50. West northwest wind 3 to 6 mph.

    Low: 50 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, with a high near 65. North wind 3 to 7 mph.

    High: 65 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: A 40 percent chance of rain, mainly after 10am. Mostly cloudy, with a high near 60.

    High: 60 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

  • Wednesday

    Wednesday: A slight chance of rain. Partly sunny, with a high near 62.

    High: 62 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 65. Calm wind becoming west 5 to 7 mph in the afternoon.
Tonight
Partly cloudy, with a low around 48. Light and variable wind.
Sunday
Partly sunny, with a high near 65. Calm wind becoming west 5 to 7 mph in the afternoon.
Sunday Night
Increasing clouds, with a low around 50. West northwest wind 3 to 6 mph.
Monday
Mostly cloudy, with a high near 65. North wind 3 to 7 mph.
Monday Night
A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 47.
Tuesday
A 40 percent chance of rain, mainly after 10am. Mostly cloudy, with a high near 60.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 46.
Wednesday
A slight chance of rain. Partly sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly cloudy, with a high near 62.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Castro Valley CA
 37.73°N 122.11°W (Elev. 397 ft)
Last Update:
1:23 am PST Feb 7, 2026
Forecast Valid:
9am PST Feb 7, 2026-6pm PST Feb 13, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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