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

Severe Thunderstorms and Critical Fire Weather Wednesday

Scattered severe thunderstorms are possible across portions of the northern High Plains Wednesday afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin Wednesday. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Overcast

58°F

14°C

Humidity 83%
Wind Speed WSW 10 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 13 May 12:54 AM PDT
Extended Forecast for

2 Miles NNW Castro Valley CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 52. West southwest wind around 7 mph.

    Low: 52 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 69. West southwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 69 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49. West southwest wind 5 to 8 mph becoming calm after midnight.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77. Calm wind becoming west southwest 5 to 9 mph in the afternoon.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. South southwest wind 5 to 9 mph.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 52. West southwest wind around 7 mph.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 69. West southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 49. West southwest wind 5 to 8 mph becoming calm after midnight.
Thursday
Sunny, with a high near 77. Calm wind becoming west southwest 5 to 9 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 51. South southwest wind 5 to 9 mph.
Friday
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 71.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Castro Valley CA
 37.73°N 122.08°W (Elev. 614 ft)
Last Update:
11:26 pm PDT May 12, 2026
Forecast Valid:
1am PDT May 13, 2026-6pm PDT May 19, 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

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation