10-Day Weather Forecast - Castro Valley, CA
- |49°FPartly CloudyHourly details
Tonight
49°FPartly cloudy late in the evening then becoming mostly cloudy. Areas of dense fog. Lows in the upper 40s. Southwest winds around 5 mph. . . Becoming southeast up to 5 mph after midnight.
- 60|48°FChance of RainHourly details
Day
60°FMostly cloudy in the morning then becoming partly cloudy. Areas of fog in the morning. A chance of rain in the afternoon. Highs around 60. Light winds.
Night
48°FMostly cloudy. Patchy fog. A chance of rain. Lows around 50. Southwest winds up to 5 mph. . . Becoming south around 5 mph after midnight.
- 57|51°FChance of RainHourly details
Day
57°FPatchy fog in the morning. A chance of rain in the morning then rain in the afternoon. Highs in the lower 60s. South winds 5 to 10 mph increasing to 10 to 20 mph in the afternoon.
Night
51°FRain in the evening then a chance of rain after midnight. Lows in the mid 50s. South winds 10 to 20 mph. . . Becoming southwest 5 to 10 mph after midnight.
Weekend Weather
- 58|51°FRainHourly details
Day
58°FPatchy fog. Rain. Highs around 60.
Night
51°FShowers and a slight chance of thunderstorms. Lows in the mid 50s. Highs around 60.
- 58|52°FChance of StormsHourly details
Day
58°FShowers and a slight chance of thunderstorms. Lows in the mid 50s. Highs around 60.
Night
52°FRain. Lows in the mid 50s.
- 57|49°FRainHourly details
Day
57°FRain likely. Highs in the upper 50s. Lows around 50.
Night
49°FRain likely. Highs in the upper 50s. Lows around 50.
- 55|47°FRainHourly details
Day
55°FRain likely. Highs in the upper 50s. Lows around 50.
Night
47°FRain. Lows in the lower 50s.
- 51|44°FRain
Day
51°FRain likely. Highs in the upper 50s.
Night
44°FCloudy with a chance of rain. Chance of precipitation 60%. Low temperature around 44F. Dew point will be around 41F with an average humidity of 87%. Winds will be 8 mph from the S.
- 48|41°F70% Chance of Rain
Day
48°FMostly cloudy with probable rain. Chance of precipitation 65%. High temperature around 48F. Dew point will be around 43F with an average humidity of 87%. Winds will be 7 mph from the S.
Night
41°FMostly clear with a chance of rain. Chance of precipitation 50%. Low temperature around 41F. Dew point will be around 37F with an average humidity of 82%. Winds will be 5 mph from the S.
- 47|39°F40% Chance of Rain
Day
47°FSunny with a chance of rain. Chance of precipitation 35%. High temperature around 47F. Dew point will be around 40F with an average humidity of 82%. Winds will be 3 mph from the S.
Night
39°FClear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 39F. Dew point will be around 35F with an average humidity of 81%. Winds will be 4 mph from the SE.
