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

Severe Weather in the Central U.S.; Critical Fire Weather in the Southern Plains

Severe thunderstorms are expected to form today from northern Oklahoma into southern Minnesota. Very large hail and tornadoes will be the initial threats this afternoon, then transition into a wind threat tonight. Gusty winds, warm temperatures, and very dry conditions will create a Critical Risk of fire weather across portions of the southern Plains today. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

50°F

10°C

Humidity 87%
Wind Speed ENE 4 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 23 Apr 04:15 AM PDT
Extended Forecast for

2 Miles WNW Castro Valley CA

  • Today

    Today: Sunny, with a high near 70. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 51. Southwest wind 5 to 7 mph.

    Low: 51 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 66. Light southwest wind becoming west 5 to 9 mph in the afternoon.

    High: 66 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50. West southwest wind 6 to 10 mph.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of rain after 11am. Mostly cloudy, with a high near 64. Southwest wind 6 to 10 mph.

    High: 64 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain before 11am. Mostly sunny, with a high near 66.

    High: 66 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 70. Calm wind becoming west 5 to 8 mph in the afternoon.
Tonight
Increasing clouds, with a low around 51. Southwest wind 5 to 7 mph.
Friday
Partly sunny, with a high near 66. Light southwest wind becoming west 5 to 9 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 50. West southwest wind 6 to 10 mph.
Saturday
A 20 percent chance of rain after 11am. Mostly cloudy, with a high near 64. Southwest wind 6 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 51.
Sunday
A 20 percent chance of rain before 11am. Mostly sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 48.
Monday
Mostly sunny, with a high near 68.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Castro Valley CA
 37.73°N 122.11°W (Elev. 397 ft)
Last Update:
2:52 am PDT Apr 23, 2026
Forecast Valid:
4am PDT Apr 23, 2026-6pm PDT Apr 29, 2026
 
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