• Early AM

    May 3

    Lo 50°

    Partly to mostly cloudy

    Common Cold Weather
    • Avg
      Temp
      61°
    • Avg
      RealFeel
      63°
    • Hi
      RealFeel
      77°
    more
  • Today

    May 3

    66°Lo 50°

    Low clouds, then sunshine

    Beneficial weather for colds
    • Avg
      Temp
      58°
    • Avg
      RealFeel
      59°
    • Hi
      RealFeel
      70°
    more
  • Mon

    May 4

    64°Lo 48°

    Areas of low clouds, then sun

    Beneficial weather for colds
    • Avg
      Temp
      56°
    • Avg
      RealFeel
      56°
    • Hi
      RealFeel
      67°
    more
  • Tue

    May 5

    66°Lo 48°

    Mostly sunny

    Beneficial weather for colds
    • Avg
      Temp
      57°
    • Avg
      RealFeel
      56°
    • Hi
      RealFeel
      68°
  • Wed

    May 6

    68°Lo 48°

    Sunshine; breezy in the p.m.

    Beneficial weather for colds
    • Avg
      Temp
      58°
    • Avg
      RealFeel
      58°
    • Hi
      RealFeel
      71°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 55° 56° 58° 60° 61° 63° 65° 66°
RealFeel® 55° 59° 63° 65° 65° 67° 68° 68°
Humidity 74% 69% 64% 60% 58% 54% 52% 51%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
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  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 8 WSW 8 WSW 8 WSW 10 WSW 12 W 13 W 14 W 14 W
UV Index 3 4 6 7 8 7 6 5
Cloud Cover 25% 25% 25% 25% 25% 25% 25% 22%
Dew Point 46° 46° 46° 46° 46° 46° 47° 48°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - May 5

more Historical Weather Data >
  Today Normal Record 5/5/2014
High 66° N/A N/A 62°
Low 48° N/A N/A 53°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:08 AM with 13:54 of sunlight, then sets at 8:02 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:44 PM with 10:26 of moolight, then sets at 8:10 AM

Castro Valley Weather Report

San Francisco: Seasonable Temperatures to Continue Through Week

May 3, 2015; 1:29 AM ET

A pattern of seasonable temperatures will continue through the first part of the new week, with low clouds in the morning and sunny conditions through the afternoon. more >

Natural Ways To Combat Colds and Flu

Nov 30, 2012; 5:00 AM ET Flu season is here and will stick around until May. Here are a few natural remedies to ease pain and suffering.

Tue. Cold & Flu

Tue. UV Index