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10-Day Weather Forecast for Castro Valley, California 94546 - The Weather Channel | weather.com
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10 Day Weather-

As of 2:47 am PDT
alertLevel3

Heat Advisory

Tonight

Clear Night Clear
--/59°
Rain drop 2%
Subtract

Night

59°
Clear Night
Rain drop
2%
ENE 4 mph

A clear sky. Low 59F. Winds light and variable.

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Heads-up

Highs In The 80s, 90s This Weekend

  • Humidity
    Humidity79%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:24 am
  • Moonset
    Moonset8:29 pm
  • Moon Phase - Day 1 Waxing Crescent

Fri 20

Sunny Sunny
90°/54°
Rain drop 2%
Add

Day

90°
Sunny
Rain drop
2%
NNW 9 mph

Sunny. High near 90F. Winds NNW at 5 to 10 mph.

  • Humidity
    Humidity45%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:11 am
  • Sunset
    Sunset7:20 pm

Night

54°
Partly Cloudy Night
Rain drop
7%
SSW 5 mph

A few clouds from time to time. Low 54F. Winds light and variable.

  • Humidity
    Humidity69%
  • 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
76°/47°
Rain drop 8%
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Day

76°
Partly Cloudy Day
Rain drop
8%
WSW 11 mph

Sunshine and clouds mixed. Warm. High 76F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity62%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:09 am
  • Sunset
    Sunset7:21 pm

Night

47°
Mostly Clear Night
Rain drop
11%
S 8 mph

Clear to partly cloudy. Low 47F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity76%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:22 am
  • Moonset
    Moonset10:57 pm
  • Moon Phase - Day 3 Waxing Crescent

Sun 22

Mostly Clear Day Mostly Sunny
79°/48°
Rain drop 5%
Add

Day

79°
Mostly Clear Day
Rain drop
5%
W 10 mph

Generally sunny despite a few afternoon clouds. Continued hot. High 79F. Winds W at 10 to 15 mph.

  • Humidity
    Humidity52%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:08 am
  • Sunset
    Sunset7:21 pm

Night

48°
Partly Cloudy Night
Rain drop
6%
SSW 7 mph

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

  • Humidity
    Humidity74%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:59 am
  • Moonset
    Moonset--
  • Moon Phase - Day 4 Waxing Crescent

Mon 23

Mostly Clear Day Mostly Sunny
82°/52°
Rain drop 5%
Add

Day

82°
Mostly Clear Day
Rain drop
5%
WSW 9 mph

Generally sunny. High 82F. Winds WSW at 5 to 10 mph.

  • Humidity
    Humidity48%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:06 am
  • Sunset
    Sunset7:22 pm

Night

52°
Mostly Clear Night
Rain drop
2%
SE 6 mph

Mostly clear. Low 52F. Winds SE at 5 to 10 mph.

  • Humidity
    Humidity60%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:43 am
  • Moonset
    Moonset12:13 am
  • Moon Phase - Day 5 Waxing Crescent

Tue 24

Sunny Sunny
80°/50°
Rain drop 2%
Add

Day

80°
Sunny
Rain drop
2%
WSW 11 mph

Mainly sunny. High near 80F. 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
4%
SW 8 mph

Mostly clear. Low near 50F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity69%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:37 am
  • Moonset
    Moonset1:25 am
  • Moon Phase - Day 6 Waxing Crescent

Wed 25

Mostly Clear Day Mostly Sunny
73°/49°
Rain drop 4%
Add

Day

73°
Mostly Clear Day
Rain drop
4%
WSW 11 mph

Sun and a few passing clouds. Near record high temperatures. High 73F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity60%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:03 am
  • Sunset
    Sunset7:24 pm

Night

49°
Partly Cloudy Night
Rain drop
6%
S 8 mph

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

  • Humidity
    Humidity71%
  • 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
78°/52°
Rain drop 3%
Add

Day

78°
Partly Cloudy Day
Rain drop
3%
NNW 9 mph

Sunshine and clouds mixed. High 78F. Winds NNW at 5 to 10 mph.

  • Humidity
    Humidity42%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:02 am
  • Sunset
    Sunset7:25 pm

Night

52°
Partly Cloudy Night
Rain drop
2%
NE 6 mph

A few clouds. Low 52F. Winds NE at 5 to 10 mph.

  • Humidity
    Humidity59%
  • 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
78°/51°
Rain drop 1%
Add

Day

78°
Partly Cloudy Day
Rain drop
1%
NW 9 mph

Partly cloudy skies. High 78F. Winds NW at 5 to 10 mph.

  • Humidity
    Humidity40%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:00 am
  • Sunset
    Sunset7:26 pm

Night

51°
Partly Cloudy Night
Rain drop
3%
S 6 mph

Partly cloudy skies. Low 51F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity67%
  • 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
74°/51°
Rain drop 2%
Add

Day

74°
Partly Cloudy Day
Rain drop
2%
WSW 10 mph

Partly cloudy skies. High 74F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity50%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:59 am
  • Sunset
    Sunset7:27 pm

Night

51°
Partly Cloudy Night
Rain drop
5%
SSW 8 mph

A few clouds from time to time. Low 51F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity70%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise3:13 pm
  • Moonset
    Moonset4:49 am
  • Moon Phase - Day 10 Waxing Gibbous

Sun 29

Partly Cloudy Day Partly Cloudy
73°/49°
Rain drop 3%
Add

Day

73°
Partly Cloudy Day
Rain drop
3%
WSW 11 mph

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

  • Humidity
    Humidity53%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:57 am
  • Sunset
    Sunset7:28 pm

Night

49°
Partly Cloudy Night
Rain drop
5%
SW 9 mph

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

  • Humidity
    Humidity78%
  • 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°/48°
Rain drop 3%
Add

Day

69°
Partly Cloudy Day
Rain drop
3%
WSW 12 mph

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

  • Humidity
    Humidity60%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise6:56 am
  • Sunset
    Sunset7:29 pm

Night

48°
Mostly Clear Night
Rain drop
13%
SW 9 mph

Mainly clear skies. Low 48F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity80%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:26 pm
  • Moonset
    Moonset5:44 am
  • Moon Phase - Day 12 Waxing Gibbous

Tue 31

Partly Cloudy Day Partly Cloudy
68°/46°
Rain drop 24%
Add

Day

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

Sunshine and clouds mixed. High 68F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity62%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:54 am
  • Sunset
    Sunset7:30 pm

Night

46°
Partly Cloudy Night
Rain drop
18%
SW 9 mph

A few clouds from time to time. Low 46F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity82%
  • 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
66°/47°
Rain drop 23%
Add

Day

66°
Partly Cloudy Day
Rain drop
23%
WSW 11 mph

Intervals of clouds and sunshine. High 66F. Winds WSW at 10 to 15 mph.

  • Humidity
    Humidity63%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise6:53 am
  • Sunset
    Sunset7:31 pm

Night

47°
Partly Cloudy Night
Rain drop
15%
S 8 mph

Partly cloudy. Low 47F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity82%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:32 pm
  • Moonset
    Moonset6:31 am
  • Moon Phase - Day 14 Full Moon

Thu 02

Partly Cloudy Day Partly Cloudy
66°/47°
Rain drop 14%
Add

Day

66°
Partly Cloudy Day
Rain drop
14%
SW 11 mph

Intervals of clouds and sunshine. High 66F. Winds SW at 10 to 15 mph.

  • Humidity
    Humidity65%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:51 am
  • Sunset
    Sunset7:32 pm

Night

47°
Scattered Showers Night
Rain drop
42%
S 8 mph

Partly cloudy skies early will give way to occasional showers later during the night. Low 47F. Winds S at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity83%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:35 pm
  • Moonset
    Moonset6:55 am
  • Moon Phase - Day 15 Full Moon
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