, °F

Personalized Forecasts

Featured Forecast

My Favorite Forecasts

    My Recent Locations

    • Today

      May 29

      67° /55°F
      Decreasing clouds
      • Good
      • for fishing
      • Precip: 0%
      • Cloud Cover: 79%
      • Wind Speed: 13 mph
    • Tue

      May 30

      67° /57°
      Low clouds break for some sun
      • Very Good
      • for fishing
      • Precip: 0%
      • Cloud Cover: 70%
      • Wind Speed: 13 mph
      More
    • Wed

      May 31

      71° /59°
      Partial sunshine
      • Good
      • for fishing
      • Precip: 13%
      • Cloud Cover: 45%
      • Wind Speed: 13 mph
      More
    • Thu

      Jun 1

      68° /53°
      Partly sunny and nice
      • Very Good
      • for fishing
      • Precip: 6%
      • Cloud Cover: 47%
      • Wind Speed: 12 mph
      More
    • Fri

      Jun 2

      73° /53°
      Mostly sunny and nice
      • Very Good
      • for fishing
      • Precip: 1%
      • Cloud Cover: 19%
      • Wind Speed: 9 mph
      More

    Day

    67°Hi RealFeel® 68° Precipitation 0%
    Cloudy this morning, then periods of clouds and sunshine this afternoon
    • WNW 13 mph
    • Gusts: 23 mph
    • Max UV Index: 5 (Moderate)
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    55°Lo RealFeel® 52° Precipitation 1%
    Partly cloudy this evening followed by late-night low clouds
    • W 9 mph
    • Gusts: 17 mph
    • Max UV Index: N/A
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 5/29/2016
    High 67° 73° N/A 77°
    Low 55° 53° N/A 51°

    Sunrise/Sunset

    • Sunrise: 5:50 AM
    • Sunset: 8:22 PM
    • Duration: 14:32 hr

    Moonrise/Moonset

    • Moonrise: 10:01 AM
    • Moonset: 12:20 AM
    • Duration: 14:19 hr
    Astronomy

    Solunar Information for Castro Valley, CA

    Thu, Jun 1
    First
    Fri, Jun 9
    Full
    Sat, Jun 17
    Last
    Sat, Jun 24
    New

    Radar & Satellite

    Mon. Fishing Weather