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

Flooding Threat Along the Gulf Coast, Southern Rockies and High Plains; Cooler Weather in the Central and Eastern U.S.

Strong thunderstorms may bring excessive rainfall and flooding over parts of the northern Gulf Coast today and over parts of the southern Rockies into the High Plains today through the weekend. A refreshingly cool and dry air mass will continue to produce below average temperatures across the central and eastern U.S. through the weekend. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

84°F

29°C

Humidity 30%
Wind Speed WNW 8 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 31 Aug 11:54 AM PDT
Extended Forecast for

2 Miles NNW Castro Valley CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 88. West wind 6 to 9 mph.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. West southwest wind around 6 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 85. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 59. Southwest wind 3 to 8 mph.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81. Light southwest wind becoming west 5 to 9 mph in the afternoon.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 88. West wind 6 to 9 mph.
Tonight
Mostly clear, with a low around 58. West southwest wind around 6 mph becoming calm in the evening.
Labor Day
Sunny, with a high near 85. Calm wind becoming west 5 to 8 mph in the afternoon.
Monday Night
Mostly clear, with a low around 59. Southwest wind 3 to 8 mph.
Tuesday
Sunny, with a high near 81. Light southwest wind becoming west 5 to 9 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 78.
Wednesday Night
Mostly cloudy, with a low around 57.
Thursday
Partly sunny, with a high near 78.
Thursday Night
Mostly cloudy, with a low around 57.
Friday
Partly sunny, with a high near 76.
Friday Night
Mostly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 74.
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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:
8:09 am PDT Aug 31, 2025
Forecast Valid:
12pm PDT Aug 31, 2025-6pm PDT Sep 6, 2025
 
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