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Castro Valley, CA

64°F
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Castro Valley

California

64°
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Castro Valley, CA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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6 PM

63°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
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Partly sunny

RealFeel Shade™58°

WindW 15 mph

Air QualityFair

Max UV Index1.5 (Low)

Wind Gusts28 mph

Humidity65%

Indoor Humidity54% (Ideal Humidity)

Dew Point51° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover30%

Visibility10 mi

Cloud Ceiling34000 ft

7 PM

61°
RealFeel® 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

RealFeel Shade™56°

WindW 14 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts24 mph

Humidity66%

Indoor Humidity51% (Ideal Humidity)

Dew Point49° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover52%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

59°
RealFeel® 55°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

WindW 10 mph

Air QualityFair

Wind Gusts16 mph

Humidity72%

Indoor Humidity52% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

57°
RealFeel® 52°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy

WindW 9 mph

Air QualityFair

Wind Gusts15 mph

Humidity78%

Indoor Humidity52% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover79%

Visibility10 mi

Cloud Ceiling21200 ft

10 PM

57°
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Cloudy

WindW 9 mph

Air QualityFair

Wind Gusts13 mph

Humidity79%

Indoor Humidity53% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling12400 ft

11 PM

57°
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Cloudy

WindW 8 mph

Air QualityFair

Wind Gusts10 mph

Humidity79%

Indoor Humidity53% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling3700 ft

Hourly Weather Forecast for Castro Valley

AccuWeather's hourly forecast for Castro Valley provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 63° with a RealFeel® of 59°, partly sunny with a 0% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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World North America United States California Castro Valley

Weather Near Castro Valley:

  • Oakland, CA
  • San Francisco, CA
  • San Jose, CA
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