• Partly cloudy 64°
    Stargazing Current Weather
    • Visibility
      10 mi
    • Cloud
      Cover
      35%
    • Ceiling
      30769 ft
  • Tonight

    Jul 6

    Lo 60°

    Increasing cloudiness

    Stargazing Weather
    • Cloud
      Cover
      61%
    • Precip
      4%
    • Hours of Precip
      0
    Day Details >
  • Tomorrow

    Jul 7

    Hi 72°

    Low clouds, then sunshine

    Good for stargazing
    • Cloud
      Cover
      60%
    • Precip
      6%
    • Hours of Precip
      0
    Day Details >
  • Wednesday

    Jul 8

    Hi 69°

    A thunderstorm in spots

    Good for stargazing
    • Cloud
      Cover
      60%
    • Precip
      5%
    • Hours of Precip
      0.5
    Day Details >
Next

A thundershower Wednesday afternoon

7/6 7/7 Now: 10:50pm
PM 10-2
  • 10pm Mostly clear 62° 0%
  • 11pm Mostly clear 62° 0%
  • 12am Mostly clear 62° 0%
  • 1am Mostly clear 61° 0%
  • 2am Cloudy 61° 0%
AM 9-2
  • 9am Cloudy 64° 0%
  • 10am Cloudy 65° 0%
  • 11am Cloudy 66° 0%
  • 12pm Cloudy 68° 0%
  • 1pm Cloudy 70° 0%
  • 2pm Mostly sunny 71° 0%
PM 3-8
  • 3pm Mostly sunny 72° 0%
  • 4pm Mostly sunny 71° 0%
  • 5pm Mostly sunny 69° 0%
  • 6pm Mostly sunny 68° 0%
  • 7pm Mostly sunny 66° 0%
  • 8pm Mostly sunny 63° 0%
Hourly Forecast >
Jul 06, 2015; 4:09 PM ET
Five-day Weather Forecast for San Francisco, CA
San Francisco, CA Weather Forecast

Solunar Information for Castro Valley, CA

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:53 AM with 14:40 of sunlight, then sets at 8:33 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:51 PM with 12:23 of moolight, then sets at 12:14 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 6, 2015; 1:57 PM ET

The San Francisco area will remain cool and comfortable into the early part of the upcoming workweek. more >

Astronomy Live Feed

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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.

Mon. Stargazing