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Current Weather Conditions for Castro Valley, CA

Sunny. High near 54, with temperatures falling to around 50 in the afternoon. Northeast wind 2 to 6 mph.
41°F

Conditions

Wind: 2 mph ENE
Humidity: 86%
Probability of Precipitation: 0%

Hourly Forcast (next 12 hours)

4 PM 5 PM 6 PM 7 PM 8 PM 9 PM 10 PM 11 PM 12 AM 1 AM 2 AM 3 AM 4 AM
41° 43° 46° 50° 52° 53° 54° 54° 53° 50° 47° 45° 44°

Upcoming Week

Day Forecast High Low
Today
Sunny
Sunny. High near 54, with temperatures falling to around 50 in the afternoon. Northeast wind 2 to 6 mph.
54°F 41°F
Tonight
Mostly Clear
Mostly clear. Low around 38, with temperatures rising to around 40 overnight. Northeast wind around 6 mph.
54°F 41°F
Monday
Sunny
Sunny. High near 56, with temperatures falling to around 52 in the afternoon. Northeast wind around 7 mph.
54°F 41°F
Monday Night
Mostly Clear
Mostly clear, with a low around 36. Northeast wind around 6 mph.
54°F 41°F
Tuesday
Sunny
Sunny, with a high near 57. Northeast wind around 7 mph.
54°F 41°F
Tuesday Night
Partly Cloudy
Partly cloudy, with a low around 39.
54°F 41°F
Wednesday
Partly Sunny then Slight Chance Light Rain
A slight chance of rain after 4pm. Partly sunny, with a high near 55.
54°F 41°F
Wednesday Night
Chance Light Rain
A chance of rain. Mostly cloudy, with a low around 44.
54°F 41°F
New Year's Day
Light Rain Likely
Rain likely. Mostly cloudy, with a high near 54.
54°F 41°F
Thursday Night
Light Rain Likely
Rain likely. Mostly cloudy, with a low around 48.
54°F 41°F
Friday
Light Rain Likely
Rain likely. Mostly cloudy, with a high near 57.
54°F 41°F
Friday Night
Chance Light Rain
A chance of rain. Mostly cloudy, with a low around 48.
54°F 41°F
Saturday
Chance Light Rain
A chance of rain. Mostly cloudy, with a high near 57.
54°F 41°F
Saturday Night
Chance Light Rain
A chance of rain. Mostly cloudy, with a low around 48.
54°F 41°F
Data provided by weather.gov