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Castro Valley, CA

71°F
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Castro Valley

California

71°
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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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Today

Hourly

 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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6 PM

70°
RealFeel® 68°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Partly sunny
alerts

Coastal Flood Advisory

8:00 AM Saturday - 3:00 PM Thursday

RealFeel Shade™68°

WindWNW 8 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts12 mph

Humidity50%

Indoor Humidity50% (Ideal Humidity)

Dew Point51° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

66°
RealFeel® 64°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Partly cloudy
alerts

Coastal Flood Advisory

8:00 AM Saturday - 3:00 PM Thursday

WindW 7 mph

Air QualityPoor

Wind Gusts8 mph

Humidity59%

Indoor Humidity56% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

63°
RealFeel® 61°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Coastal Flood Advisory

8:00 AM Saturday - 3:00 PM Thursday

WindW 7 mph

Air QualityPoor

Wind Gusts7 mph

Humidity68%

Indoor Humidity56% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

59°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Coastal Flood Advisory

8:00 AM Saturday - 3:00 PM Thursday

WindW 7 mph

Air QualityPoor

Wind Gusts7 mph

Humidity78%

Indoor Humidity56% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover21%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

59°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Coastal Flood Advisory

8:00 AM Saturday - 3:00 PM Thursday

WindW 6 mph

Air QualityPoor

Wind Gusts7 mph

Humidity78%

Indoor Humidity56% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover15%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

58°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Coastal Flood Advisory

8:00 AM Saturday - 3:00 PM Thursday

WindW 6 mph

Air QualityPoor

Wind Gusts7 mph

Humidity79%

Indoor Humidity56% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 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 70° with a RealFeel® of 68°, 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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