• Tonight

    Apr 26

    Lo 57°

    Patchy clouds

    Stargazing Weather
    • Cloud
      Cover
      22%
    • Precip
      0%
    • Hours of Precip
      0
  • Mon

    Apr 27

    81°Lo 55°

    Sunny and warmer

    Excellent for stargazing
    • Cloud
      Cover
      9%
    • Precip
      0%
    • Hours of Precip
      0
    more
  • Tue

    Apr 28

    70°Lo 54°

    Mostly sunny and nice

    Poor for stargazing
    • Cloud
      Cover
      72%
    • Precip
      3%
    • Hours of Precip
      0
    more
  • Wed

    Apr 29

    73°Lo 55°

    Mostly sunny

    Very Good for stargazing
    • Cloud
      Cover
      6%
    • Precip
      3%
    • Hours of Precip
      0
    more
  • Thu

    Apr 30

    82°Lo 57°

    Mostly sunny and nice

    Very Good for stargazing
    • Cloud
      Cover
      0%
    • Precip
      2%
    • Hours of Precip
      0
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
4pm
5pm 6pm 7pm 8pm 9pm 10pm 11pm
  4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Forecast
Partly Sunny
Mostly Sunny
Mostly Sunny
Partly Cloudy
Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 67° 66° 64° 62° 59° 57° 58° 58°
RealFeel® 68° 65° 61° 58° 54° 53° 55° 57°
Humidity 52% 56% 62% 66% 74% 78% 77% 75%
   
  4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
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0%
Ice
 
0%
 
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  4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Wind (mph) 14 WSW 14 WSW 13 WSW 15 WNW 13 W 10 W 7 W 5 WNW
UV Index 4 3 1 0 0 0 0 0
Cloud Cover 31% 25% 14% 51% 53% 46% 37% 30%
Dew Point 49° 50° 51° 51° 51° 50° 51° 50°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Apr 26

more Historical Weather Data >
  Today Normal Record 4/26/2014
High 68° N/A N/A 59°
Low 57° N/A N/A 42°

Solunar Information for Castro Valley, CA

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:19 AM with 13:35 of sunlight, then sets at 7:54 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:21 PM with 13:33 of moolight, then sets at 2:54 AM

Mon, May 4
Full
Mon, May 11
Last
Mon, May 18
New
Mon, May 25
First

Castro Valley Weather Report

San Francisco: Dry Pattern to Continue After Weekend Showers

April 26, 2015; 12:41 PM ET

Warm and dry conditions will begin the new 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.

Sun. Stargazing