• Today

    Jul 7

    73°Lo 59°

    Low clouds, then sunshine

    Good for stargazing
    • Cloud
      Cover
      60%
    • Precip
      5%
    • Hours of Precip
      0
    more
  • Wed

    Jul 8

    70°Lo 61°

    Low clouds breaking

    Poor for stargazing
    • Cloud
      Cover
      85%
    • Precip
      7%
    • Hours of Precip
      0
  • Thu

    Jul 9

    69°Lo 60°

    Increasing amounts of sun

    Poor for stargazing
    • Cloud
      Cover
      69%
    • Precip
      3%
    • Hours of Precip
      0
    more
  • Fri

    Jul 10

    72°Lo 56°

    Low clouds, then sunshine

    Excellent for stargazing
    • Cloud
      Cover
      66%
    • Precip
      6%
    • Hours of Precip
      0
    more
  • Sat

    Jul 11

    73°Lo 56°

    Pleasant with clouds breaking

    Poor for stargazing
    • Cloud
      Cover
      67%
    • Precip
      6%
    • Hours of Precip
      0
    more
Next Previous
Hi 70° RealFeel® 72° Precipitation 25%

Day

N

E

S

W

  • WNW 12 mph
  • Gusts: 21 mph

Cool with low clouds followed by some sun; a refreshing afternoon breeze

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 61° RealFeel® 58° Precipitation 7%

Night

N

E

S

W

  • W 9 mph
  • Gusts: 16 mph

Mostly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Jul 8

more Historical Weather Data >
  Today Normal Record 7/8/2014
High 70° N/A N/A 73°
Low 61° N/A N/A 55°

Solunar Information for Castro Valley, CA

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:54 AM with 14:39 of sunlight, then sets at 8:33 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:28 AM with 12:53 of moolight, then sets at 1:21 PM

Wed, Jul 8
Last
Thu, Jul 16
New
Fri, Jul 24
First
Fri, Jul 31
Full

Castro Valley Weather Report

San Francisco: Cooler, Comfortable Conditions to Start Week

July 7, 2015; 2:57 PM ET

The San Francisco area will remain cool and comfortable into midweek. 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