• Early AM

    Oct 21

    Lo 52°

    Partly cloudy

    Stargazing Weather
    • Cloud
      Cover
      21%
    • Precip
      3%
    • Hours of Precip
      0
    more
  • Today

    Oct 21

    71°Lo 52°

    Partly sunny

    Very Good for stargazing
    • Cloud
      Cover
      34%
    • Precip
      4%
    • Hours of Precip
      0
  • Wed

    Oct 22

    71°Lo 57°

    Partly sunny and pleasant

    Fair for stargazing
    • Cloud
      Cover
      70%
    • Precip
      12%
    • Hours of Precip
      0
    more
  • Thu

    Oct 23

    73°Lo 58°

    Mostly sunny and pleasant

    Fair for stargazing
    • Cloud
      Cover
      69%
    • Precip
      15%
    • Hours of Precip
      0
    more
  • Fri

    Oct 24

    73°Lo 57°

    Sunshine and patchy clouds

    Poor for stargazing
    • Cloud
      Cover
      72%
    • Precip
      82%
    • Hours of Precip
      6
    more
Next Previous
Partly cloudy 58° Lo 52° RealFeel® 56° / 51°

N

E

S

W

  • Precipitation: 2%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 84%
  • Cloud Cover: 59%
  • Dew Point: 50° F
  • Visibility: 10 mi
4 mph

Temperature History - Oct 21

more Historical Weather Data >
  Today Normal Record 10/21/2013
High 71° N/A N/A 71°
Low 52° N/A N/A 48°

Solunar Information for Castro Valley, CA

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:22 AM with 11:01 of sunlight, then sets at 6:23 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:14 AM with 12:04 of moolight, then sets at 5:18 PM

Thu, Oct 23
New
Fri, Oct 31
First
Thu, Nov 6
Full
Fri, Nov 14
Last

Castro Valley Weather Report

San Francisco: Dry Weather to Remain into Late Week

October 21, 2014; 6:40 AM ET

After the Bay Area received a light rainfall to start the week, it will turn dry again on Tuesday and remain unseasonably war. more >

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.

Tue. Stargazing