• Today

    Jul 22

    75°Lo 61°

    Partial sunshine

    Beneficial weather for migraines
    • Hi
      RealFeel
      78°
    • UV
      8 - Very High
    • Cloud
      Cover
      49%
  • Wed

    Jul 23

    74°Lo 58°

    Areas of low clouds, then sun

    Beneficial weather for migraines
    • Hi
      RealFeel
      76°
    • UV
      8 - Very High
    • Cloud
      Cover
      45%
    more
  • Thu

    Jul 24

    82°Lo 59°

    Sunny

    Beneficial weather for migraines
    • Hi
      RealFeel
      84°
    • UV
      9 - Very High
    • Cloud
      Cover
      6%
    more
  • Fri

    Jul 25

    84°Lo 59°

    A full day of sunshine

    Beneficial weather for migraines
    • Hi
      RealFeel
      87°
    • UV
      9 - Very High
    • Cloud
      Cover
      0%
    more
  • Sat

    Jul 26

    85°Lo 60°

    Partly sunny

    Beneficial weather for migraines
    • Hi
      RealFeel
      87°
    • UV
      8 - Very High
    • Cloud
      Cover
      26%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
5am
6am 7am 8am 9am 10am 11am 12pm
  5am 6am 7am 8am 9am 10am 11am 12pm
Forecast
Partly Cloudy
Partly Cloudy
Partly Sunny
T-storms
T-storms
Cloudy
Mostly Cloudy
Partly Cloudy
Temp (°F) 62° 62° 63° 64° 66° 67° 69° 71°
RealFeel® 59° 59° 61° 63° 64° 67° 71° 77°
Humidity 86% 86% 85% 83% 79% 76% 71% 67%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Rain
 
0%
 
0%
 
0%
 
55%
 
55%
 
49%
 
34%
 
34%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Wind (mph) 5 NW 5 NW 5 WNW 4 WNW 5 W 5 W 6 WNW 6 WSW
UV Index 0 0 0 1 2 2 4 7
Cloud Cover 44% 46% 44% 94% 90% 90% 86% 52%
Dew Point 58° 58° 58° 59° 59° 59° 59° 60°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Jul 22

more Historical Weather Data >
  Today Normal Record 7/22/2013
High 75° N/A N/A 73°
Low 61° N/A N/A 57°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:04 AM with 14:21 of sunlight, then sets at 8:25 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:41 AM with 14:27 of moolight, then sets at 5:08 PM

Top Story

Castro Valley Weather Report

Stretch of Dry Weather Ahead for San Francisco

July 22, 2014; 1:10 AM ET

While the lack of rain is not uncommon for the Bay Area this time of year, the lack of precipitation will only serve to worsen the drought. more >

Battling the Common Cold

Jun 23, 2014; 5:00 AM ET Marja Martinez talks about identifying and fighting the common cold.

Tue. Migraine Headache

Tue. UV Index