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10-Day Weather Forecast for Castro Valley, California 94552 - The Weather Channel | weather.com
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10 Day Weather-

As of 7:47 pm PDT
alertLevel3

Heat Advisory

Tonight

Partly Cloudy Night Partly Cloudy
--/55°
Rain drop 7%
Subtract

Night

55°
Partly Cloudy Night
Rain drop
7%
WSW 3 mph

Partly cloudy. Low around 55F. Winds light and variable.

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  • Humidity
    Humidity66%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:52 am
  • Moonset
    Moonset9:41 pm
  • Moon Phase - Day 2 Waxing Crescent

Sat 21

Partly Cloudy Day Partly Cloudy
77°/48°
Rain drop 7%
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Day

77°
Partly Cloudy Day
Rain drop
7%
WSW 11 mph

Partly cloudy. Warm. High 77F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity60%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:09 am
  • Sunset
    Sunset7:21 pm

Night

48°
Mostly Clear Night
Rain drop
11%
S 8 mph

A mostly clear sky. Low 48F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity75%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:23 am
  • Moonset
    Moonset10:57 pm
  • Moon Phase - Day 3 Waxing Crescent

Sun 22

Partly Cloudy Day Partly Cloudy
76°/49°
Rain drop 6%
Add

Day

76°
Partly Cloudy Day
Rain drop
6%
WSW 10 mph

Partly cloudy. Continued hot. High 76F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity57%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:08 am
  • Sunset
    Sunset7:21 pm

Night

49°
Partly Cloudy Night
Rain drop
6%
SSW 7 mph

A few clouds from time to time. Low 49F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity77%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:59 am
  • Moonset
    Moonset--
  • Moon Phase - Day 4 Waxing Crescent

Mon 23

Sunny Sunny
76°/50°
Rain drop 5%
Add

Day

76°
Sunny
Rain drop
5%
SW 10 mph

Mainly sunny. High 76F. Winds SW at 10 to 15 mph.

  • Humidity
    Humidity50%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:06 am
  • Sunset
    Sunset7:22 pm

Night

50°
Clear Night
Rain drop
3%
SSE 7 mph

A mostly clear sky. Low near 50F. Winds SSE at 5 to 10 mph.

  • Humidity
    Humidity64%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:43 am
  • Moonset
    Moonset12:13 am
  • Moon Phase - Day 5 Waxing Crescent

Tue 24

Sunny Sunny
79°/50°
Rain drop 2%
Add

Day

79°
Sunny
Rain drop
2%
WSW 11 mph

A mainly sunny sky. High 79F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity42%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:05 am
  • Sunset
    Sunset7:23 pm

Night

50°
Mostly Clear Night
Rain drop
5%
SW 8 mph

Clear to partly cloudy. Low around 50F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity71%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:37 am
  • Moonset
    Moonset1:25 am
  • Moon Phase - Day 6 Waxing Crescent

Wed 25

Partly Cloudy Day Partly Cloudy
73°/49°
Rain drop 5%
Add

Day

73°
Partly Cloudy Day
Rain drop
5%
WSW 12 mph

Partly cloudy. Near record high temperatures. High 73F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity66%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:03 am
  • Sunset
    Sunset7:24 pm

Night

49°
Partly Cloudy Night
Rain drop
6%
SSW 9 mph

Partly cloudy. Low 49F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity75%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise11:40 am
  • Moonset
    Moonset2:32 am
  • Moon Phase - Day 7 First Quarter

Thu 26

Partly Cloudy Day Partly Cloudy
75°/49°
Rain drop 4%
Add

Day

75°
Partly Cloudy Day
Rain drop
4%
WNW 10 mph

Sunshine and clouds mixed. High around 75F. Winds WNW at 10 to 15 mph.

  • Humidity
    Humidity51%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:02 am
  • Sunset
    Sunset7:25 pm

Night

49°
Partly Cloudy Night
Rain drop
5%
ESE 7 mph

Partly cloudy skies. Low 49F. Winds ESE at 5 to 10 mph.

  • Humidity
    Humidity71%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:50 pm
  • Moonset
    Moonset3:27 am
  • Moon Phase - Day 8 Waxing Gibbous

Fri 27

Partly Cloudy Day Partly Cloudy
75°/51°
Rain drop 2%
Add

Day

75°
Partly Cloudy Day
Rain drop
2%
W 9 mph

Sunshine and clouds mixed. High near 75F. Winds W at 5 to 10 mph.

  • Humidity
    Humidity49%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:00 am
  • Sunset
    Sunset7:26 pm

Night

51°
Partly Cloudy Night
Rain drop
4%
S 7 mph

Partly cloudy in the evening with more clouds for later at night. Low 51F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity70%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise2:02 pm
  • Moonset
    Moonset4:12 am
  • Moon Phase - Day 9 Waxing Gibbous

Sat 28

Partly Cloudy Day Partly Cloudy
73°/50°
Rain drop 3%
Add

Day

73°
Partly Cloudy Day
Rain drop
3%
WSW 10 mph

Partly cloudy. High 73F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:59 am
  • Sunset
    Sunset7:27 pm

Night

50°
Partly Cloudy Night
Rain drop
6%
SSW 7 mph

A few clouds from time to time. Low near 50F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity73%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise3:13 pm
  • Moonset
    Moonset4:49 am
  • Moon Phase - Day 10 Waxing Gibbous

Sun 29

Mostly Clear Day Mostly Sunny
72°/50°
Rain drop 4%
Add

Day

72°
Mostly Clear Day
Rain drop
4%
WSW 11 mph

Generally sunny despite a few afternoon clouds. High 72F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity54%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:57 am
  • Sunset
    Sunset7:28 pm

Night

50°
Partly Cloudy Night
Rain drop
21%
SW 8 mph

Partly cloudy. Low around 50F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity75%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:21 pm
  • Moonset
    Moonset5:18 am
  • Moon Phase - Day 11 Waxing Gibbous

Mon 30

Partly Cloudy Day Partly Cloudy
69°/51°
Rain drop 8%
Add

Day

69°
Partly Cloudy Day
Rain drop
8%
WSW 12 mph

Intervals of clouds and sunshine. High 69F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity58%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:56 am
  • Sunset
    Sunset7:29 pm

Night

51°
Partly Cloudy Night
Rain drop
24%
SW 10 mph

Partly cloudy in the evening with more clouds for later at night. Low 51F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity71%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:26 pm
  • Moonset
    Moonset5:45 am
  • Moon Phase - Day 12 Waxing Gibbous

Tue 31

Partly Cloudy Day Partly Cloudy
67°/48°
Rain drop 24%
Add

Day

67°
Partly Cloudy Day
Rain drop
24%
WSW 12 mph

Partly to mostly cloudy. High 67F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity58%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:54 am
  • Sunset
    Sunset7:30 pm

Night

48°
Showers
Rain drop
38%
S 9 mph

Cloudy with occasional showers. Low 48F. Winds S at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity77%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:30 pm
  • Moonset
    Moonset6:08 am
  • Moon Phase - Day 13 Waxing Gibbous

Wed 01

Partly Cloudy Day Partly Cloudy
67°/48°
Rain drop 24%
Add

Day

67°
Partly Cloudy Day
Rain drop
24%
WSW 11 mph

Intervals of clouds and sunshine in the morning with more clouds for later in the day. High 67F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity60%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:53 am
  • Sunset
    Sunset7:31 pm

Night

48°
Partly Cloudy Night
Rain drop
24%
SSW 9 mph

Partly cloudy. Low 48F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity79%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:32 pm
  • Moonset
    Moonset6:32 am
  • Moon Phase - Day 14 Full Moon

Thu 02

Partly Cloudy Day Partly Cloudy
68°/49°
Rain drop 24%
Add

Day

68°
Partly Cloudy Day
Rain drop
24%
WSW 12 mph

Intervals of clouds and sunshine. High 68F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity61%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise6:52 am
  • Sunset
    Sunset7:32 pm

Night

49°
Partly Cloudy Night
Rain drop
24%
SW 9 mph

A few clouds from time to time. Low 49F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity77%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:35 pm
  • Moonset
    Moonset6:55 am
  • Moon Phase - Day 15 Full Moon

Fri 03

Partly Cloudy Day Partly Cloudy
70°/50°
Rain drop 19%
Add

Day

70°
Partly Cloudy Day
Rain drop
19%
WSW 11 mph

Partly cloudy skies. High around 70F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity59%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:50 am
  • Sunset
    Sunset7:32 pm

Night

50°
Showers
Rain drop
38%
S 8 mph

Overcast with rain showers at times. Low around 50F. Winds S at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity77%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:37 pm
  • Moonset
    Moonset7:19 am
  • Moon Phase - Day 16 Waning Gibbous
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