Current Weather
1:31 PM
87°F
Sunny
RealFeel® 95°
Hot
RealFeel Shade™ 85°
Very Warm
RealFeel®
95°
RealFeel Shade™
85°
Heat Index
86°
Max UV Index
6.1 (High)
Wind
NW 3 mph
Wind Gusts
6 mph
Humidity
36%
Indoor Humidity
36% (Slightly Humid)
Dew Point
57° F
Pressure
↔ 29.99 in
Cloud Cover
2%
Visibility
7 mi
Cloud Ceiling
40000 ft
Day
9/8
92°Hi
RealFeel®
95°
Hot
RealFeel Shade™
89°
Very Warm
Hot with sunshine; caution advised if doing strenuous activities outside
Max UV Index7.0 (High)
AccuLumen Brightness Index™9 (Very Bright)
WindNNW 6 mph
Wind Gusts18 mph
Probability of Precipitation0%
Probability of Thunderstorms0%
Precipitation0.00 in
Cloud Cover5%
Night
9/8
66°Lo
RealFeel®
64°
Pleasant
Some clouds
WindSSW 4 mph
Wind Gusts7 mph
Probability of Precipitation0%
Probability of Thunderstorms0%
Precipitation0.00 in
Cloud Cover51%
Sun & Moon
12 hrs 43 mins
Rise
6:44 AM
Set
7:27 PM
Waning Crescent
Rise
3:51 AM
Set
6:14 PM
Temperature History
9/8High
Low
Forecast
92°
66°
Average
78°
58°
Last Year
80°
59°
Current Weather Conditions in Castro Valley
Castro Valley, California is currently Sunny with a temperature of 87°. The current RealFeel® Temperature is 95° (Hot) based on observed conditions including 36% humidity, 2% cloud cover, a UV index of 6, and winds of 3 mph. In shade, the RealFeel Shade™ is 85°. AccuWeather's MinuteCast® provides minute-by-minute precipitation forecasts for Castro Valley, powered by forecasting systems and proprietary technology developed by AccuWeather meteorologists since 1962.
