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Current Weather Conditions for Castro Valley, CA

Patchy frost between 4am and 5am. Partly cloudy, with a low around 38. East northeast wind around 6 mph.
40°F

Conditions

Wind: 5 mph ENE
Humidity: 75%
Probability of Precipitation: 0%

Hourly Forcast (next 12 hours)

9 AM 10 AM 11 AM 12 PM 1 PM 2 PM 3 PM 4 PM 5 PM 6 PM 7 PM 8 PM 9 PM
40° 39° 39° 38° 38° 38° 38° 39° 42° 45° 50° 52° 53°

Upcoming Week

Day Forecast High Low
Overnight
Patchy Frost
Patchy frost between 4am and 5am. Partly cloudy, with a low around 38. East northeast wind around 6 mph.
63°F 46°F
Saturday
Patchy Frost then Mostly Sunny
Patchy frost before 7am. Mostly sunny. High near 56, with temperatures falling to around 51 in the afternoon. Northeast wind around 7 mph.
63°F 46°F
Saturday Night
Mostly Cloudy
Mostly cloudy. Low around 38, with temperatures rising to around 40 overnight. Northeast wind around 5 mph.
63°F 46°F
Sunday
Mostly Sunny
Mostly sunny, with a high near 58. Northeast wind around 6 mph.
63°F 46°F
Sunday Night
Mostly Clear
Mostly clear, with a low around 39. Northeast wind around 5 mph.
63°F 46°F
Monday
Sunny
Sunny, with a high near 58.
63°F 46°F
Monday Night
Mostly Clear
Mostly clear, with a low around 40.
63°F 46°F
Tuesday
Sunny
Sunny, with a high near 61.
63°F 46°F
Tuesday Night
Mostly Clear
Mostly clear, with a low around 43.
63°F 46°F
Wednesday
Sunny
Sunny, with a high near 62.
63°F 46°F
Wednesday Night
Mostly Clear
Mostly clear, with a low around 44.
63°F 46°F
Thursday
Sunny
Sunny, with a high near 64.
63°F 46°F
Thursday Night
Mostly Clear
Mostly clear, with a low around 45.
63°F 46°F
Friday
Sunny
Sunny, with a high near 63.
63°F 46°F
Data provided by weather.gov