• Tonight

    Sep 30

    Lo 56°

    Clear

    Stargazing Weather
    • Cloud
      Cover
      6%
    • Precip
      4%
    • Hours of Precip
      0
    more
  • Wed

    Oct 1

    82°Lo 57°

    Mostly sunny

    Excellent for stargazing
    • Cloud
      Cover
      0%
    • Precip
      0%
    • Hours of Precip
      0
  • Thu

    Oct 2

    91°Lo 61°

    Warmer with plenty of sun

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

    Oct 3

    93°Lo 59°

    Very warm with plenty of sun

    Excellent for stargazing
    • Cloud
      Cover
      2%
    • Precip
      1%
    • Hours of Precip
      0
    more
  • Sat

    Oct 4

    88°Lo 60°

    Sunshine and very warm

    Excellent for stargazing
    • Cloud
      Cover
      6%
    • Precip
      1%
    • Hours of Precip
      0
    more
Next Previous
Clear 69° Lo 60° RealFeel® 65° / 59°

N

E

S

W

  • Precipitation: 0%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 54%
  • Cloud Cover: 0%
  • Dew Point: 47° F
  • Visibility: 10 mi
3 mph

Temperature History - Oct 1

more Historical Weather Data >
  Today Normal Record 10/1/2013
High 82° N/A N/A 70°
Low 57° N/A N/A 54°

Solunar Information for Castro Valley, CA

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:04 AM with 11:48 of sunlight, then sets at 6:52 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:04 PM with 10:29 of moolight, then sets at 12:33 AM

Wed, Oct 1
First
Wed, Oct 8
Full
Wed, Oct 15
Last
Thu, Oct 23
New
Top Story

Castro Valley Weather Report

San Francisco: Several Hot, Sunny Days Ahead

September 30, 2014; 8:25 PM ET

After a brief reprieve from the heat on Tuesday and Wednesday, temperatures will again climb into the 80s late week in San Francisco. 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