Castro Valley, CA Weather

    02:00 Tuesday
    Fog
    Fog
    10° Feels like 12°
    Full Moon Full Moon Illuminated: 100%
    • Today 3 March Fog More information 17° / 9° Moderate west wind 12 - 30 km/h
    • Tomorrow 4 March Scattered clouds 17° / 9° Moderate west wind 18 - 43 km/h
    • Thursday 5 March Clear 17° / 5° Moderate northwest wind 15 - 37 km/h
    • Friday 6 March Clear 21° / 9° Moderate northeast wind 16 - 35 km/h
    • Saturday 7 March Scattered clouds 22° / 10° Moderate northeast wind 19 - 43 km/h
    • Sunday 8 March Clear 24° / 7° Moderate west wind 9 - 24 km/h
    • Monday 9 March Scattered clouds 18° / 9° Moderate southwest wind 10 - 28 km/h

    Weather Forecast for Castro Valley, CA Today

    , 3 March

    Tomorrow

    , 4 March
    03:00 Fog 10° Fog
    Feels Like 12°
    Gentle north wind North 1 - 6 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 99%
    • Dew Point Dew Point 9 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 12 °C
    • Visibility Visibility 50 m
    • Wind Wind - Average 1 km/h
    • Pressure Pressure 1020 hPa
    • Fog Fog Yes
    • Wind - Gusts Wind - Gusts 6 km/h
    • Snowline Snowline 11811 ft
    04:00 Fog 10° Fog
    Feels Like 10°
    Gentle northwest wind Northwest 3 - 8 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 98%
    • Dew Point Dew Point 10 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 10 °C
    • Visibility Visibility 50 m
    • Wind Wind - Average 3 km/h
    • Pressure Pressure 1020 hPa
    • Fog Fog Yes
    • Wind - Gusts Wind - Gusts 8 km/h
    • Snowline Snowline 11811 ft
    05:00 Fog 11° Fog
    Feels Like 11°
    Gentle west wind West 2 - 8 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 99%
    • Dew Point Dew Point 10 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 11 °C
    • Visibility Visibility 50 m
    • Wind Wind - Average 2 km/h
    • Pressure Pressure 1020 hPa
    • Fog Fog Yes
    • Wind - Gusts Wind - Gusts 8 km/h
    • Snowline Snowline 11483 ft
    06:00 Fog 11° Fog
    Feels Like 11°
    Gentle southwest wind Southwest 2 - 8 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 99%
    • Dew Point Dew Point 11 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 11 °C
    • Visibility Visibility 100 m
    • Wind Wind - Average 2 km/h
    • Pressure Pressure 1021 hPa
    • Fog Fog Yes
    • Wind - Gusts Wind - Gusts 8 km/h
    • Snowline Snowline 11483 ft
    07:00 Overcast 11° Overcast
    Feels Like 11°
    Gentle southwest wind Southwest 2 - 8 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 98%
    • Dew Point Dew Point 11 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 11 °C
    • Visibility Visibility 100 m
    • Wind Wind - Average 2 km/h
    • Pressure Pressure 1021 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 8 km/h
    • Snowline Snowline 11483 ft
    Overcast 08:00 Overcast 11° Overcast
    Feels Like 11°
    Gentle south wind South 4 - 13 km/h
    		UV Index 0 Low SPF: no
    08:00 Overcast 11° Overcast
    Feels Like 11°
    Gentle south wind South 4 - 13 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 98%
    • Dew Point Dew Point 11 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 11 °C
    • Visibility Visibility 200 m
    • Wind Wind - Average 4 km/h
    • Pressure Pressure 1021 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 13 km/h
    • Snowline Snowline 11483 ft
    09:00 Overcast 12° Overcast
    Feels Like 12°
    Gentle south wind South 5 - 16 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 96%
    • Dew Point Dew Point 11 °C
    • Clouds Clouds 100%
    • Feels Like Feels Like 12 °C
    • Visibility Visibility 5 km
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1021 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 16 km/h
    • Snowline Snowline 11811 ft
    10:00 Partly cloudy 13° Partly cloudy
    Feels Like 13°
    Gentle south wind South 4 - 17 km/h
    		UV Index 2 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 92%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 90%
    • Feels Like Feels Like 13 °C
    • Visibility Visibility 20 km
    • Wind Wind - Average 4 km/h
    • Pressure Pressure 1021 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 17 km/h
    • Snowline Snowline 12139 ft
    Partly cloudy 11:00 Partly cloudy 15° Partly cloudy
    Feels Like 15°
    Gentle southwest wind Southwest 4 - 17 km/h
    		UV Index 3 Moderate SPF: 6-10
    11:00 Partly cloudy 15° Partly cloudy
    Feels Like 15°
    Gentle southwest wind Southwest 4 - 17 km/h
    		UV Index 3 Moderate SPF: 6-10
    • Rain Rain 0% 0 mm
    • Humidity Humidity 86%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 84%
    • Feels Like Feels Like 15 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 4 km/h
    • Pressure Pressure 1021 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 17 km/h
    • Snowline Snowline 12139 ft
    12:00 Scattered clouds 16° Scattered clouds
    Feels Like 16°
    Moderate west wind West 5 - 20 km/h
    		UV Index 5 Moderate SPF: 6-10
    • Rain Rain 0% 0 mm
    • Humidity Humidity 81%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 26%
    • Feels Like Feels Like 16 °C
    • Visibility Visibility 25 km
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1021 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 20 km/h
    • Snowline Snowline 12139 ft
    13:00 Clear 16° Sunny
    Feels Like 16°
    Moderate west wind West 7 - 24 km/h
    		UV Index 5 Moderate SPF: 6-10
    • Rain Rain 0% 0 mm
    • Humidity Humidity 76%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 3%
    • Feels Like Feels Like 16 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1020 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 24 km/h
    • Snowline Snowline 12139 ft
    Sunny 14:00 Clear 17° Sunny
    Feels Like 17°
    Moderate west wind West 9 - 26 km/h
    		UV Index 4 Moderate SPF: 6-10
    14:00 Clear 17° Sunny
    Feels Like 17°
    Moderate west wind West 9 - 26 km/h
    		UV Index 4 Moderate SPF: 6-10
    • Rain Rain 0% 0 mm
    • Humidity Humidity 73%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 1%
    • Feels Like Feels Like 17 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 9 km/h
    • Pressure Pressure 1019 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 26 km/h
    • Snowline Snowline 12139 ft
    15:00 Clear 16° Sunny
    Feels Like 16°
    Moderate west wind West 10 - 28 km/h
    		UV Index 2 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 77%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 2%
    • Feels Like Feels Like 16 °C
    • Visibility Visibility 35 km
    • Wind Wind - Average 10 km/h
    • Pressure Pressure 1019 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 28 km/h
    • Snowline Snowline 12139 ft
    16:00 Clear 15° Sunny
    Feels Like 15°
    Moderate west wind West 12 - 29 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 82%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 1%
    • Feels Like Feels Like 15 °C
    • Visibility Visibility 30 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1019 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 29 km/h
    • Snowline Snowline 12139 ft
    Sunny 17:00 Clear 14° Sunny
    Feels Like 14°
    Moderate west wind West 12 - 30 km/h
    		UV Index 0 Low SPF: no
    17:00 Scattered clouds 14° Scattered clouds
    Feels Like 14°
    Moderate west wind West 12 - 30 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 87%
    • Dew Point Dew Point 12 °C
    • Clouds Clouds 2%
    • Feels Like Feels Like 14 °C
    • Visibility Visibility 25 km
    • Wind Wind - Average 12 km/h
    • Pressure Pressure 1019 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 30 km/h
    • Snowline Snowline 12139 ft
    18:00 Scattered clouds 12° Scattered clouds
    Feels Like 12°
    Moderate west wind West 9 - 28 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 94%
    • Dew Point Dew Point 11 °C
    • Clouds Clouds 18%
    • Feels Like Feels Like 12 °C
    • Visibility Visibility 25 km
    • Wind Wind - Average 9 km/h
    • Pressure Pressure 1020 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 28 km/h
    • Snowline Snowline 12139 ft
    19:00 Scattered clouds 12° Scattered clouds
    Feels Like 12°
    Gentle west wind West 7 - 19 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 97%
    • Dew Point Dew Point 11 °C
    • Clouds Clouds 41%
    • Feels Like Feels Like 12 °C
    • Visibility Visibility 20 km
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1020 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 19 km/h
    • Snowline Snowline 12139 ft
    Scattered clouds 20:00 Scattered clouds 12° Scattered clouds
    Feels Like 12°
    Gentle west wind West 6 - 16 km/h
    		UV Index 0 Low SPF: no
    20:00 Partly cloudy 12° Partly cloudy
    Feels Like 12°
    Gentle west wind West 6 - 16 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 98%
    • Dew Point Dew Point 11 °C
    • Clouds Clouds 28%
    • Feels Like Feels Like 12 °C
    • Visibility Visibility 20 km
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1020 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 16 km/h
    • Snowline Snowline 12139 ft
    21:00 Partly cloudy 11° Partly cloudy
    Feels Like 11°
    Gentle west wind West 8 - 17 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 96%
    • Dew Point Dew Point 11 °C
    • Clouds Clouds 73%
    • Feels Like Feels Like 11 °C
    • Visibility Visibility 20 km
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1021 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 17 km/h
    • Snowline Snowline 12139 ft
    22:00 Partly cloudy 11° Partly cloudy
    Feels Like 11°
    Gentle southwest wind Southwest 6 - 17 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 96%
    • Dew Point Dew Point 11 °C
    • Clouds Clouds 59%
    • Feels Like Feels Like 11 °C
    • Visibility Visibility 20 km
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1021 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 17 km/h
    • Snowline Snowline 12139 ft
    Partly cloudy 23:00 Partly cloudy 11° Partly cloudy
    Feels Like 11°
    Gentle southwest wind Southwest 7 - 15 km/h
    		UV Index 0 Low SPF: no
    23:00 Partly cloudy 11° Partly cloudy
    Feels Like 11°
    Gentle southwest wind Southwest 7 - 15 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 96%
    • Dew Point Dew Point 11 °C
    • Clouds Clouds 59%
    • Feels Like Feels Like 11 °C
    • Visibility Visibility 20 km
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1021 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 15 km/h
    • Snowline Snowline 11811 ft
    24:00 Partly cloudy 11° Partly cloudy
    Feels Like 11°
    Gentle southwest wind Southwest 8 - 17 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 96%
    • Dew Point Dew Point 11 °C
    • Clouds Clouds 80%
    • Feels Like Feels Like 11 °C
    • Visibility Visibility 20 km
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1021 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 17 km/h
    • Snowline Snowline 11483 ft

    Sunrise and Sunset

    Sunrise 06:36 Sunset 18:04
    First light 06:10 Midday 12:20 Last light 18:30
    Day length 11h 28m

    Time remaining until sunrise 3h 53m

    Lunar calendar

    Mon Tue Wed Thu Fri Sat Sun
    3 Full Moon
    4 Full Moon
    5 Last Quarter
    6 Last Quarter
    7 Last Quarter
    8 Last Quarter
    9 Last Quarter
    10 Last Quarter
    11 Last Quarter
    12 Last Quarter
    13 Last Quarter
    14 Last Quarter
    15 Last Quarter
    16 Last Quarter

    Air quality in Castro Valley today

    Detail
    36
    Fair PM₂₅ (21 µg/m³)

    Weather graphs
    Maximum Minimum Rainfall

    Videos

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