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

Tropical System Impacts for the East; Severe Weather and Heavy Rainfall Threats

Heavy rain and dangerous surf conditions up the East Coast are forecast as tropical storm conditions approach late this week and into the weekend. Meanwhile, strong to severe thunderstorms are expected to impact portions of the central U.S. including heavy to excessive rainfall through Saturday. For the Intermountain region, below normal temperatures and some snow for the higher terrain. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

Lat: 37.66083°NLon: 122.11833°WElev: 46ft.

Clear

57°F

14°C

Humidity 82%
Wind Speed ENE 6 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 52°F (11°C)
Visibility 7.00 mi
Last update 22 Sep 03:20 AM PDT
Extended Forecast for

Castro Valley CA

  • Overnight

    Overnight: Mostly clear early, then becoming cloudy, with a low around 54. Southwest wind around 6 mph.

    Becoming
    Cloudy

    Low: 54 °F

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 73. Light and variable wind becoming west 5 to 10 mph in the morning.

    Becoming
    Sunny

    High: 73 °F

  • Friday
    Night

    Friday Night: Mostly clear during the early evening, then becoming cloudy, with a low around 54. West southwest wind 6 to 10 mph.

    Becoming
    Cloudy

    Low: 54 °F

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 71. West wind 6 to 10 mph.

    Patchy Fog
    then Sunny

    High: 71 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 54. West wind 6 to 11 mph.

    Partly Cloudy

    Low: 54 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 72.

    Mostly Sunny

    High: 72 °F

  • Sunday
    Night

    Sunday Night: Mostly cloudy, with a low around 55.

    Mostly Cloudy

    Low: 55 °F

  • Monday

    Monday: A slight chance of drizzle after 11am. Partly sunny, with a high near 73.

    Slight Chance
    Drizzle

    High: 73 °F

  • Monday
    Night

    Monday Night: A chance of drizzle. Mostly cloudy, with a low around 59.

    Chance
    Drizzle

    Low: 59 °F

Detailed Forecast

Overnight
Mostly clear early, then becoming cloudy, with a low around 54. Southwest wind around 6 mph.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 73. Light and variable wind becoming west 5 to 10 mph in the morning.
Friday Night
Mostly clear during the early evening, then becoming cloudy, with a low around 54. West southwest wind 6 to 10 mph.
Saturday
Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 71. West wind 6 to 10 mph.
Saturday Night
Partly cloudy, with a low around 54. West wind 6 to 11 mph.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
Mostly cloudy, with a low around 55.
Monday
A slight chance of drizzle after 11am. Partly sunny, with a high near 73.
Monday Night
A chance of drizzle. Mostly cloudy, with a low around 59.
Tuesday
Patchy fog between 8am and 9am. Otherwise, mostly sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 76.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Castro Valley CA
 37.69°N 122.05°W (Elev. 364 ft)
Last Update:
1:36 am PDT Sep 22, 2023
Forecast Valid:
3am PDT Sep 22, 2023-6pm PDT Sep 28, 2023
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation