Dangerous heat and humidity from the central U.S. to East Coast this weekend

Hot and very humid conditions will push the heat index to well over 100 degrees across a large portion of the central and eastern U.S. Excessive Heat Warnings and Heat Advisories are in effect for much of the Plains, Miss. Valley, Midwest, Ohio Valley, Mid-Atlantic and southern states. Be very cautious if you must do outdoor activities in these areas during the afternoon and evening this weekend. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Fair

59°F

15°C

Humidity 67%
Wind Speed NA
Barometer 29.97 in (1015.8 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 23 Jul 5:54 am PDT
Extended Forecast for

Castro Valley CA

  • Today

    Today: Sunny, with a high near 90. Calm wind becoming west 5 to 9 mph in the afternoon.

    Sunny

    High: 90 °F

  • Tonight

    Tonight: Increasing clouds, with a low around 55. South southwest wind 5 to 8 mph.

    Increasing
    Clouds

    Low: 55 °F

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 88. Light south southwest wind becoming west southwest 5 to 9 mph in the afternoon.

    Becoming
    Sunny

    High: 88 °F

  • Sunday
    Night

    Sunday Night: Increasing clouds, with a low around 54. Southwest wind 7 to 10 mph.

    Increasing
    Clouds

    Low: 54 °F

  • Monday

    Monday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 82. West wind around 7 mph.

    Patchy Fog
    then Sunny

    High: 82 °F

  • Monday
    Night

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

    Partly Cloudy

    Low: 55 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87.

    Mostly Sunny

    High: 87 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 55.

    Mostly Clear

    Low: 55 °F

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    Sunny

    High: 86 °F

Detailed Forecast

Today
Sunny, with a high near 90. Calm wind becoming west 5 to 9 mph in the afternoon.
Tonight
Increasing clouds, with a low around 55. South southwest wind 5 to 8 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 88. Light south southwest wind becoming west southwest 5 to 9 mph in the afternoon.
Sunday Night
Increasing clouds, with a low around 54. Southwest wind 7 to 10 mph.
Monday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 82. West wind around 7 mph.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 83.
Click Map For Forecast
Point Forecast:
Castro Valley CA
 37.72°N 122.05°W (Elev. 397 ft)
2:59 am PDT Jul 23, 2016
6am PDT Jul 23, 2016-6pm PDT Jul 29, 2016
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database