• Today

    Feb 6

    61°Lo 45°

    Sun and some clouds

    Excellent for stargazing
    • Cloud
      Cover
      6%
    • Precip
      2%
    • Hours of Precip
      0
  • Sun

    Feb 7

    68°Lo 47°

    Plenty of sunshine

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

    Feb 8

    70°Lo 46°

    Plenty of sunshine

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

    Feb 9

    70°Lo 46°

    Plenty of sunshine

    Very Good for stargazing
    • Cloud
      Cover
      36%
    • Precip
      7%
    • Hours of Precip
      0
    more
  • Wed

    Feb 10

    67°Lo 47°

    Partly sunny

    Poor for stargazing
    • Cloud
      Cover
      81%
    • Precip
      5%
    • Hours of Precip
      0
    more
Next Previous
Hi 61° RealFeel® 62° Precipitation 4%

Day

N

E

S

W

  • NE 5 mph
  • Gusts: 8 mph

Sun and some clouds

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 45° RealFeel® 46° Precipitation 2%

Night

N

E

S

W

  • ENE 4 mph
  • Gusts: 6 mph

Clear

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Feb 6

more Historical Weather Data >
  Today Normal Record 2/6/2015
High 61° 60° N/A 60°
Low 45° 44° N/A 54°

Solunar Information for Castro Valley, CA

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:08 AM with 10:30 of sunlight, then sets at 5:38 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:26 AM with 10:33 of moolight, then sets at 3:59 PM

Mon, Feb 8
New
Mon, Feb 15
First
Mon, Feb 22
Full
Tue, Mar 1
Last

Castro Valley Weather Report

Super Bowl Sunday: Break in wet El Nino-driven weather pattern to arrive in time for big game

February 6, 2016; 3:55 PM ET

Dry conditions and above-normal temperatures are expected for Super Bowl Sunday in Santa Clara, California. 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.

Sat. Stargazing