• Tonight

    Jul 31

    Lo 62°

    Mainly clear

    Stargazing Weather
    • Cloud
      Cover
      24%
    • Precip
      0%
    • Hours of Precip
      0
  • Fri

    Aug 1

    89°Lo 61°

    Mostly sunny

    Excellent for stargazing
    • Cloud
      Cover
      11%
    • Precip
      1%
    • Hours of Precip
      0
    more
  • Sat

    Aug 2

    82°Lo 61°

    Mostly sunny

    Excellent for stargazing
    • Cloud
      Cover
      0%
    • Precip
      1%
    • Hours of Precip
      0
    more
  • Sun

    Aug 3

    81°Lo 60°

    Mostly sunny

    Excellent for stargazing
    • Cloud
      Cover
      20%
    • Precip
      0%
    • Hours of Precip
      0
    more
  • Mon

    Aug 4

    79°Lo 60°

    Mostly sunny

    Excellent for stargazing
    • Cloud
      Cover
      20%
    • Precip
      0%
    • Hours of Precip
      0
    more
Next Previous
After a cloudy start, sun returns 78° Lo 62° RealFeel® 82° / 62°

N

E

S

W

  • Precipitation: 0%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 71%
  • Cloud Cover: 56%
  • Dew Point: 59° F
  • Visibility: 9 mi
6 mph

Temperature History - Jul 31

more Historical Weather Data >
  Today Normal Record 7/31/2013
High 83° N/A N/A 71°
Low 62° N/A N/A 55°

Solunar Information for Castro Valley, CA

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:11 AM with 14:07 of sunlight, then sets at 8:18 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:38 AM with 12:01 of moolight, then sets at 10:39 PM

Mon, Aug 4
First
Sun, Aug 10
Full
Sun, Aug 17
Last
Mon, Aug 25
New
Top Story

Castro Valley Weather Report

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July 31, 2014; 10:09 PM ET

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Curiosity Tastes Mars

Dec 14, 2012; 5:00 AM ET The Mars Science Laboratory Rover 'Curiosity' continues its sampling and analyzing of the Martian surface.

Thu. Stargazing