On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Dangerous heat continues across lower Miss. Valley, Deep South

High temperatures and dew points will persist Thursday into Friday across parts of the lower Miss. Valley & Deep South, creating dangerous heat index values in excess of 110 degrees for some locations. Heat Advisories & Excessive Heat Warnings are in effect across the region. Take extra precautions if you work or spend time outside & know the signs and symptoms of heat exhaustion and heat stroke.
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Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Fog

62°F

17°C

Humidity 86%
Wind Speed N 8 MPH
Barometer 30.01 in (1017.0 mb)
Dewpoint 58°F (14°C)
Visibility 6.00 mi
Last update 30 Jul 6:54 am PDT
Extended Forecast for

Castro Valley CA

  • Today

    Today: Patchy dense fog before 11am.  Otherwise, mostly sunny, with a high near 82. Light west wind increasing to 6 to 11 mph in the morning.

    Patchy Dense
    Fog then
    Mostly Sunny

    High: 82 °F

  • Tonight

    Tonight: Mostly cloudy, with a low around 60. West wind 5 to 10 mph becoming light west northwest  after midnight.

    Mostly Cloudy

    Low: 60 °F

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 11am.  Partly sunny, with a high near 80. Light west southwest wind becoming west 6 to 11 mph in the afternoon.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Slight Chance
    T-storms

    High: 80 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 11pm.  Mostly cloudy, with a low around 60. Southwest wind 10 to 13 mph.

    Slight Chance
    T-storms then
    Partly Cloudy

    Low: 60 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 77. West southwest wind 9 to 13 mph.

    Mostly Sunny

    High: 77 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 59.

    Partly Cloudy

    Low: 59 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 76.

    Mostly Sunny

    High: 76 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 58.

    Partly Cloudy

    Low: 58 °F

  • Monday

    Monday: Mostly sunny, with a high near 74.

    Mostly Sunny

    High: 74 °F

Detailed Forecast

Today
Patchy dense fog before 11am. Otherwise, mostly sunny, with a high near 82. Light west wind increasing to 6 to 11 mph in the morning.
Tonight
Mostly cloudy, with a low around 60. West wind 5 to 10 mph becoming light west northwest after midnight.
Friday
A 20 percent chance of showers and thunderstorms after 11am. Partly sunny, with a high near 80. Light west southwest wind becoming west 6 to 11 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 20 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 60. Southwest wind 10 to 13 mph.
Saturday
Mostly sunny, with a high near 77. West southwest wind 9 to 13 mph.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 78.
  Click Map For Forecast
Point Forecast:
Castro Valley CA
 37.72°N 122.05°W (Elev. 397 ft)
3:08 am PDT Jul 30, 2015
7am PDT Jul 30, 2015-6pm PDT Aug 5, 2015
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Graph

National Digital Forecast Database