Castro Valley, CA Weather

    20:00 Saturday
    Clear
    Clear skies
    6° Feels like 6°
    First Quarter First Quarter Illuminated: 50%
    • Today 27 Dec. Scattered clouds 13° / 4° Moderate north wind 8 - 21 km/h
    • Tomorrow 28 Dec. Scattered clouds 14° / 3° Gentle northeast wind 7 - 16 km/h
    • Monday 29 Dec. Clear 14° / 2° Gentle northeast wind 8 - 18 km/h
    • Tuesday 30 Dec. Clear 14° / 2° Moderate northeast wind 9 - 21 km/h
    • Wednesday 31 Dec. Clear 17° / 3° Gentle northeast wind 7 - 17 km/h
    • Thursday 1 Jan. Light rain with partly cloudy skies 70% 1.3 mm 16° / 5° Gentle northeast wind 4 - 12 km/h
    • Friday 2 Jan. Light rain with partly cloudy skies 70% 5.2 mm 13° / 7° Strong west wind 19 - 58 km/h

    Weather Forecast for Castro Valley, CA Today

    , 27 December

    Tomorrow

    , 28 December
    17:00 Clear 11° Sunny
    Feels Like 11°
    Gentle northeast wind Northeast 7 - 18 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 74%
    • Dew Point Dew Point 7 °C
    • Clouds Clouds 7%
    • Feels Like Feels Like 11 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1023 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 18 km/h
    • Snowline Snowline 9186 ft
    18:00 Clear skies 10° Clear
    Feels Like 9°
    Gentle northeast wind Northeast 6 - 16 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 82%
    • Dew Point Dew Point 7 °C
    • Clouds Clouds 1%
    • Feels Like Feels Like 9 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1024 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 16 km/h
    • Snowline Snowline 9186 ft
    19:00 Clear skies 8° Clear
    Feels Like 8°
    Gentle east wind East 4 - 13 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 88%
    • Dew Point Dew Point 6 °C
    • Clouds Clouds 0%
    • Feels Like Feels Like 8 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 4 km/h
    • Pressure Pressure 1024 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 13 km/h
    • Snowline Snowline 9514 ft
    20:00 Clear skies 7° Clear
    Feels Like 8°
    Gentle northeast wind Northeast 2 - 9 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 94%
    • Dew Point Dew Point 6 °C
    • Clouds Clouds 0%
    • Feels Like Feels Like 8 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 2 km/h
    • Pressure Pressure 1024 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 9 km/h
    • Snowline Snowline 9514 ft
    21:00 Clear skies 6° Clear
    Feels Like 6°
    Gentle northeast wind Northeast 3 - 9 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 96%
    • Dew Point Dew Point 6 °C
    • Clouds Clouds 0%
    • Feels Like Feels Like 6 °C
    • Visibility Visibility 25 km
    • Wind Wind - Average 3 km/h
    • Pressure Pressure 1025 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 9 km/h
    • Snowline Snowline 9843 ft
    22:00 Scattered clouds 5° Scattered clouds
    Feels Like 5°
    Gentle northeast wind Northeast 4 - 10 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 98%
    • Dew Point Dew Point 5 °C
    • Clouds Clouds 37%
    • Feels Like Feels Like 5 °C
    • Visibility Visibility 3 km
    • Wind Wind - Average 4 km/h
    • Pressure Pressure 1025 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 10 km/h
    • Snowline Snowline 9843 ft
    23:00 Scattered clouds 5° Scattered clouds
    Feels Like 5°
    Gentle northeast wind Northeast 3 - 10 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 98%
    • Dew Point Dew Point 4 °C
    • Clouds Clouds 50%
    • Feels Like Feels Like 5 °C
    • Visibility Visibility 2 km
    • Wind Wind - Average 3 km/h
    • Pressure Pressure 1025 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 10 km/h
    • Snowline Snowline 9843 ft
    24:00 Scattered clouds 4° Scattered clouds
    Feels Like 4°
    Gentle northeast wind Northeast 3 - 10 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 99%
    • Dew Point Dew Point 4 °C
    • Clouds Clouds 55%
    • Feels Like Feels Like 4 °C
    • Visibility Visibility 2 km
    • Wind Wind - Average 3 km/h
    • Pressure Pressure 1025 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 10 km/h
    • Snowline Snowline 9843 ft

    Sunrise and Sunset

    Sunrise 07:22 Sunset 16:56
    First light 06:53 Midday 12:09 Last light 17:26
    Day length 9h 35m

    Lunar calendar

    Mon Tue Wed Thu Fri Sat Sun
    27 First Quarter
    28 First Quarter
    29 First Quarter
    30 First Quarter
    31 First Quarter
    1 First Quarter
    2 Full Moon
    3 Full Moon
    4 Last Quarter
    5 Last Quarter
    6 Last Quarter
    7 Last Quarter
    8 Last Quarter
    9 Last Quarter

    Air quality in Castro Valley today

    Detail
    41
    Moderate PM₂₅ (25 µg/m³)
    • Possible health risk.
    • Enjoy your usual outdoor activities if you do not experience symptoms.
    • Sensitive people should limit prolonged or intense outdoor activities.

    Weather graphs
    Maximum Minimum Rainfall

    Videos

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