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Castro Valley, CA

74°F
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Castro Valley, CA Weather
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Winter Center
Today Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Sunday, September 21

Day

9/21
80°Hi
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
RealFeel Shade™ 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Areas of low clouds early; otherwise, mostly sunny

Max UV Index5.0 (Moderate)

AccuLumen Brightness Index™7 (Bright)

WindWSW 8 mph

Wind Gusts18 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover43%

Morning

Afternoon

Night

9/21
58°Lo
RealFeel® 58°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
Clear

WindSW 5 mph

Wind Gusts10 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover0%

Evening

Overnight

Sun & Moon

12 hrs 12 mins
Rise 6:55 AM
Set 7:07 PM
New Moon
Rise 6:47 AM
Set 7:03 PM

Temperature History

9/21
High
Low
Forecast
80°
58°
Average
77°
57°
Last Year
72°
52°

Further Ahead

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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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