• Early AM

    Sep 30

    Lo 60°

    Clear

    Stargazing Weather
    • Cloud
      Cover
      37%
    • Precip
      0%
    • Hours of Precip
      0
    more
  • Today

    Sep 30

    76°Lo 57°

    Sunny and pleasant

    Excellent for stargazing
    • Cloud
      Cover
      11%
    • Precip
      4%
    • Hours of Precip
      0
    more
  • Wed

    Oct 1

    83°Lo 57°

    Mostly sunny

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

    Oct 2

    89°Lo 60°

    Plenty of sun

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

    Oct 3

    91°Lo 60°

    Very warm with plenty of sun

    Excellent for stargazing
    • Cloud
      Cover
      2%
    • Precip
      1%
    • Hours of Precip
      0
    more
Next Previous
Hi 89° RealFeel® 89° Precipitation 0%

Day

N

E

S

W

  • WNW 5 mph
  • Gusts: 8 mph

Plenty of sun

  • Max UV Index: 5 (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 60° RealFeel® 59° Precipitation 0%

Night

N

E

S

W

  • NNE 3 mph
  • Gusts: 5 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 - Oct 2

more Historical Weather Data >
  Today Normal Record 10/2/2013
High 89° N/A N/A 72°
Low 60° N/A N/A 51°

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: Seasonable, Sunny Conditions Ahead

September 29, 2014; 8:40 AM ET

Several days of sunshine and dry weather lie ahead for the Bay Area. 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.

Thu. Stargazing