• Tonight

    Jul 13

    Lo 57°

    Partly cloudy

    Stargazing Weather
    • Cloud
      Cover
      40%
    • Precip
      1%
    • Hours of Precip
      0
  • Mon

    Jul 14

    82°Lo 60°

    Mostly sunny

    Fair for stargazing
    • Cloud
      Cover
      25%
    • Precip
      2%
    • Hours of Precip
      0
    more
  • Tue

    Jul 15

    80°Lo 61°

    Mostly sunny

    Excellent for stargazing
    • Cloud
      Cover
      17%
    • Precip
      1%
    • Hours of Precip
      0
    more
  • Wed

    Jul 16

    75°Lo 60°

    Mostly sunny

    Excellent for stargazing
    • Cloud
      Cover
      20%
    • Precip
      5%
    • Hours of Precip
      0
    more
  • Thu

    Jul 17

    75°Lo 59°

    Areas of low clouds, then sun

    Excellent for stargazing
    • Cloud
      Cover
      20%
    • Precip
      1%
    • Hours of Precip
      0
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
11pm
Mon
12am
1am 2am 3am 4am 5am 6am
  11pm 12am 1am 2am 3am 4am 5am 6am
Forecast
Mostly Clear
Clear
Clear
Mostly Clear
Partly Cloudy
Cloudy
Cloudy
Cloudy
Temp (°F) 60° 60° 59° 59° 57° 59° 59° 59°
RealFeel® 58° 58° 58° 57° 55° 58° 58° 58°
Humidity 85% 83% 85% 87% 94% 87% 87% 86%
   
  11pm 12am 1am 2am 3am 4am 5am 6am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  11pm 12am 1am 2am 3am 4am 5am 6am
Wind (mph) 4 W 4 W 4 W 4 W 3 W 3 W 2 WSW 2 WSW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 15% 5% 1% 10% 32% 63% 90% 100%
Dew Point 56° 55° 55° 55° 55° 55° 55° 55°
Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Jul 13

more Historical Weather Data >
  Today Normal Record 7/13/2013
High 79° N/A N/A 77°
Low 57° N/A N/A 54°

Solunar Information for Castro Valley, CA

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:57 AM with 14:34 of sunlight, then sets at 8:31 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:26 PM with 11:17 of moolight, then sets at 8:43 AM

Sat, Jul 19
Last
Sat, Jul 26
New
Mon, Aug 4
First
Sun, Aug 10
Full

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