• Tonight

    May 5

    Lo 50°

    Patchy clouds

    Stargazing Weather
    • Cloud
      Cover
      46%
    • Precip
      3%
    • Hours of Precip
      0
    more
  • Wed

    May 6

    64°Lo 51°

    Mostly sunny and comfortable

    Fair for stargazing
    • Cloud
      Cover
      45%
    • Precip
      25%
    • Hours of Precip
      0
  • Thu

    May 7

    66°Lo 51°

    Times of clouds and sun

    Good for stargazing
    • Cloud
      Cover
      26%
    • Precip
      10%
    • Hours of Precip
      0
    more
  • Fri

    May 8

    69°Lo 51°

    Sunny

    Very Good for stargazing
    • Cloud
      Cover
      20%
    • Precip
      3%
    • Hours of Precip
      0
    more
  • Sat

    May 9

    68°Lo 51°

    Mostly sunny and pleasant

    Excellent for stargazing
    • Cloud
      Cover
      20%
    • Precip
      1%
    • Hours of Precip
      0
    more
Next Previous
Mostly sunny 64° Lo 56° RealFeel® 66° / 52°

N

E

S

W

  • Precipitation: 10%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 62%
  • Cloud Cover: 16%
  • Dew Point: 47° F
  • Visibility: 10 mi
13 mph

Temperature History - May 6

more Historical Weather Data >
  Today Normal Record 5/6/2014
High 64° N/A N/A 65°
Low 51° N/A N/A 48°

Solunar Information for Castro Valley, CA

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:07 AM with 13:56 of sunlight, then sets at 8:03 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:40 PM with 10:22 of moolight, then sets at 9:02 AM

Mon, May 11
Last
Mon, May 18
New
Mon, May 25
First
Tue, Jun 2
Full

Castro Valley Weather Report

San Francisco: Seasonable Weather to Hold Through Week

May 5, 2015; 7:47 PM ET

While a few showers will pass east of the Bay Area, seasonable weather and sunshine will hold in place through the weekend. 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.

Wed. Stargazing