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

Tracking Storm System Across the Eastern U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

55°F

13°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 19 Oct 04:35 AM PDT
Extended Forecast for

2 Miles NNW Castro Valley CA

  • Today

    Today: Sunny, with a high near 74. Calm wind becoming west 5 to 9 mph in the morning.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 54. Light and variable wind becoming north northeast 15 to 20 mph after midnight.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 78. North northeast wind 16 to 21 mph decreasing to 10 to 15 mph in the afternoon.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. Northeast wind 7 to 9 mph.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. Northeast wind 5 to 9 mph becoming west northwest in the afternoon.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 69.

    High: 69 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Today
Sunny, with a high near 74. Calm wind becoming west 5 to 9 mph in the morning.
Tonight
Mostly clear, with a low around 54. Light and variable wind becoming north northeast 15 to 20 mph after midnight.
Monday
Sunny, with a high near 78. North northeast wind 16 to 21 mph decreasing to 10 to 15 mph in the afternoon.
Monday Night
Mostly clear, with a low around 55. Northeast wind 7 to 9 mph.
Tuesday
Sunny, with a high near 78. Northeast wind 5 to 9 mph becoming west northwest in the afternoon.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Partly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 69.
Thursday Night
Mostly cloudy, with a low around 52.
Friday
Patchy fog. Otherwise, partly sunny, with a high near 69.
Friday Night
A chance of rain. Cloudy, with a low around 56.
Saturday
A chance of rain. Cloudy, with a high near 65.
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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:
4:17 am PDT Oct 19, 2025
Forecast Valid:
4am PDT Oct 19, 2025-6pm PDT Oct 25, 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