Castro Valley Weather Today

Daily Weather Forecast & Temperature in Castro Valley

overcast clouds
27°
overcast clouds
H: 29° L: 24°
Feels like 27°
AQI: (/5)
Humidity
39%
Dew 12°
Wind speed
11.27 km/h
W · G19.3
Pressure
1015 hPa
Visibility
10 km
Weather Summary
Currently in Castro Valley, expect varied conditions with warm temperatures around 27°. Winds are a light breeze.
Precipitation Probability
0%
14
0%
17
0%
20
0%
23
0%
02
0%
05
0%
08
0%
11
0%
14
0%
17
0%
20
0%
23
0%
02
0%
05
0%
08
0%
11
Evolution
Daily Weather Forecast Evolution (°C)
Lowest temperature
Highest temperature
Temperature Forecast (48h)
27°
Sun
14:00
26°
 
20°
 
13°
 
Mon
02:00
 
13°
 
19°
 
21°
Mon
14:00
19°
 
12°
 
11°
 
10°
Tue
02:00
10°
 
12°
 
17°
 
Hot (≥30°)
Warm
Cool
Cold (<0°)
Weather Map
Sun & Moon
Sunrise
Sunrise
06:47
Sunset
Sunset
19:34
Moon Phase
Waning Gibbous (82%)
Timezone: GMT+05:30
Last updated: Apr 6, 2026 2:14 AM · Data refreshes every 5 min
Location Info
Latitude
Latitude
37.694099
Longitude
Longitude
-122.086349
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More about Castro Valley
Content curated by the NearWeather editorial team · Updated periodically
Castro Valley is an unincorporated community located in Alameda County, California. It is situated in the San Francisco Bay Area, about 25 miles east of San Francisco. The climate in Castro Valley is mild throughout the year, with warm temperatures in the summer and cool temperatures in the winter. Average temperatures range from highs of 68ºF (20ºC) in the summer to lows of 45ºF (7ºC) in the winter. Precipitation is evenly distributed throughout the year, with an average of 28 inches (71 cm) of rain annually.
Weather data sourced from OpenWeatherMap. Forecasts are estimates and may differ from actual conditions. For severe weather, consult your local meteorological authority.
FAQ's about Castro Valley
What is the Latitude and Longitude of Castro Valley?

Castro Valley's Latitude is 37.694099 & Longitude is -122.086349.

What is the weather in Castro Valley today?

Weather in Castro Valley is 27° today.

What is the climatic condition of Castro Valley today?

Climate Conditions in Castro Valley shows overcast clouds today.

What is the humidity in Castro Valley today?

Humidity in Castro Valley is 39% today.

What is the wind speed in Castro Valley today?

Wind speed in Castro Valley is 11.27 km/h, flowing at 268° W wind direction.

What does it feel like in Castro Valley today?

It feels like 27° in Castro Valley today, with 94% cloud cover and 10 km visibility.

Weather in Castro Valley