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

As of 8:42 pm PDT

Tonight

Clear Night Clear
--/48°
Rain drop 5%
Subtract

Night

48°
Clear Night
Rain drop
5%
NE 3 mph

Clear skies. Low 48F. Winds light and variable.

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  • Humidity
    Humidity72%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise2:50 am
  • Moonset
    Moonset11:50 am
  • Moon Phase - Day 22 Last Quarter

Thu 12

Sunny Sunny
78°/47°
Rain drop 5%
Add

Day

78°
Sunny
Rain drop
5%
W 9 mph

Sunny skies. Near record high temperatures. High 78F. Winds W at 5 to 10 mph.

  • Humidity
    Humidity52%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:23 am
  • Sunset
    Sunset7:12 pm

Night

47°
Partly Cloudy Night
Rain drop
19%
SSW 6 mph

Partly cloudy skies. Low 47F. Winds light and variable.

  • Humidity
    Humidity79%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise3:42 am
  • Moonset
    Moonset12:45 pm
  • Moon Phase - Day 23 Waning Crescent

Fri 13

Foggy AM Fog/PM Clouds
71°/49°
Rain drop 12%
Add

Day

71°
Foggy
Rain drop
12%
SW 10 mph

Morning fog, then mostly cloudy in the afternoon. High 71F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity64%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise7:21 am
  • Sunset
    Sunset7:13 pm

Night

49°
Partly Cloudy Night
Rain drop
14%
SW 6 mph

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

  • Humidity
    Humidity82%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:27 am
  • Moonset
    Moonset1:45 pm
  • Moon Phase - Day 24 Waning Crescent

Sat 14

Partly Cloudy Day Partly Cloudy
74°/51°
Rain drop 12%
Add

Day

74°
Partly Cloudy Day
Rain drop
12%
WSW 9 mph

Partly cloudy skies. High 74F. Winds WSW at 5 to 10 mph.

  • Humidity
    Humidity61%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:20 am
  • Sunset
    Sunset7:14 pm

Night

51°
Partly Cloudy Night
Rain drop
8%
SSW 6 mph

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

  • Humidity
    Humidity82%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:05 am
  • Moonset
    Moonset2:49 pm
  • Moon Phase - Day 25 Waning Crescent

Sun 15

Partly Cloudy Day Partly Cloudy
81°/56°
Rain drop 7%
Add

Day

81°
Partly Cloudy Day
Rain drop
7%
NW 8 mph

Partly cloudy. Near record high temperatures. High 81F. Winds NW at 5 to 10 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:18 am
  • Sunset
    Sunset7:15 pm

Night

56°
Partly Cloudy Night
Rain drop
4%
NE 5 mph

A few clouds from time to time. Low 56F. Winds light and variable.

  • Humidity
    Humidity68%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:39 am
  • Moonset
    Moonset3:55 pm
  • Moon Phase - Day 26 Waning Crescent

Mon 16

Mostly Clear Day Mostly Sunny
86°/57°
Rain drop 3%
Add

Day

86°
Mostly Clear Day
Rain drop
3%
N 7 mph

A few clouds early, otherwise mostly sunny. Near record high temperatures. High 86F. Winds N at 5 to 10 mph.

  • Humidity
    Humidity44%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:17 am
  • Sunset
    Sunset7:16 pm

Night

57°
Mostly Clear Night
Rain drop
2%
NE 4 mph

Mostly clear skies. Low 57F. Winds light and variable.

  • Humidity
    Humidity66%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:08 am
  • Moonset
    Moonset5:02 pm
  • Moon Phase - Day 27 Waning Crescent

Tue 17

Sunny Sunny
89°/56°
Rain drop 2%
Add

Day

89°
Sunny
Rain drop
2%
N 7 mph

Mainly sunny. Near record high temperatures. High 89F. Winds N at 5 to 10 mph.

  • Humidity
    Humidity46%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:15 am
  • Sunset
    Sunset7:17 pm

Night

56°
Mostly Clear Night
Rain drop
6%
NNE 4 mph

Clear to partly cloudy. Low 56F. Winds light and variable.

  • Humidity
    Humidity74%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:34 am
  • Moonset
    Moonset6:10 pm
  • Moon Phase - Day 28 Waning Crescent

Wed 18

Partly Cloudy Day Partly Cloudy
83°/55°
Rain drop 5%
Add

Day

83°
Partly Cloudy Day
Rain drop
5%
WSW 9 mph

Partly cloudy skies. High 83F. Winds WSW at 5 to 10 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:14 am
  • Sunset
    Sunset7:18 pm

Night

55°
Partly Cloudy Night
Rain drop
5%
SSW 6 mph

A few clouds from time to time. Low near 55F. Winds light and variable.

  • Humidity
    Humidity76%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:59 am
  • Moonset
    Moonset7:18 pm
  • Moon Phase - Day 0 New Moon

Thu 19

Mostly Clear Day Mostly Sunny
81°/55°
Rain drop 4%
Add

Day

81°
Mostly Clear Day
Rain drop
4%
WSW 9 mph

A few clouds early, otherwise mostly sunny. High 81F. Winds WSW at 5 to 10 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:12 am
  • Sunset
    Sunset7:19 pm

Night

55°
Partly Cloudy Night
Rain drop
5%
SSW 6 mph

Partly cloudy skies. Low near 55F. Winds light and variable.

  • Humidity
    Humidity73%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:24 am
  • Moonset
    Moonset8:29 pm
  • Moon Phase - Day 1 Waxing Crescent

Fri 20

Partly Cloudy Day Partly Cloudy
79°/54°
Rain drop 4%
Add

Day

79°
Partly Cloudy Day
Rain drop
4%
WSW 10 mph

Partly cloudy skies. High 79F. Winds WSW at 5 to 10 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:11 am
  • Sunset
    Sunset7:20 pm

Night

54°
Partly Cloudy Night
Rain drop
6%
SW 7 mph

Partly cloudy skies. Low 54F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity77%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:52 am
  • Moonset
    Moonset9:41 pm
  • Moon Phase - Day 2 Waxing Crescent

Sat 21

Mostly Cloudy Day Mostly Cloudy
74°/51°
Rain drop 4%
Add

Day

74°
Mostly Cloudy Day
Rain drop
4%
WSW 11 mph

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

  • Humidity
    Humidity54%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:09 am
  • Sunset
    Sunset7:21 pm

Night

51°
Partly Cloudy Night
Rain drop
4%
WSW 8 mph

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

  • Humidity
    Humidity72%
  • 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
71°/49°
Rain drop 3%
Add

Day

71°
Partly Cloudy Day
Rain drop
3%
W 12 mph

Partly cloudy. High 71F. Winds W at 10 to 15 mph.

  • Humidity
    Humidity56%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:08 am
  • Sunset
    Sunset7:22 pm

Night

49°
Partly Cloudy Night
Rain drop
9%
W 9 mph

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

  • Humidity
    Humidity72%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:59 am
  • Moonset
    Moonset--
  • Moon Phase - Day 4 Waxing Crescent

Mon 23

Partly Cloudy Day Partly Cloudy
69°/46°
Rain drop 2%
Add

Day

69°
Partly Cloudy Day
Rain drop
2%
W 12 mph

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

  • Humidity
    Humidity52%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:06 am
  • Sunset
    Sunset7:22 pm

Night

46°
Partly Cloudy Night
Rain drop
10%
WSW 9 mph

Partly cloudy skies. Low 46F. Winds WSW at 5 to 10 mph.

  • Humidity
    Humidity77%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:43 am
  • Moonset
    Moonset12:13 am
  • Moon Phase - Day 5 Waxing Crescent

Tue 24

Partly Cloudy Day Partly Cloudy
67°/47°
Rain drop 3%
Add

Day

67°
Partly Cloudy Day
Rain drop
3%
W 12 mph

Intervals of clouds and sunshine. High 67F. Winds W at 10 to 15 mph.

  • Humidity
    Humidity56%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:05 am
  • Sunset
    Sunset7:23 pm

Night

47°
Partly Cloudy Night
Rain drop
12%
SW 9 mph

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

  • Humidity
    Humidity76%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:37 am
  • Moonset
    Moonset1:26 am
  • Moon Phase - Day 6 Waxing Crescent

Wed 25

Partly Cloudy Day Partly Cloudy
67°/48°
Rain drop 11%
Add

Day

67°
Partly Cloudy Day
Rain drop
11%
WSW 12 mph

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

  • Humidity
    Humidity61%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:03 am
  • Sunset
    Sunset7:24 pm

Night

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

A few clouds. Low 48F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity81%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise11:40 am
  • Moonset
    Moonset2:32 am
  • Moon Phase - Day 7 First Quarter
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