• Wed

    Aug 19

    87°Lo 61°

    Sunny and warm

    Beneficial weather for migraines
    • Hi
      RealFeel
      87°
    • UV
      7 - Very High
    • Cloud
      Cover
      1%
  • Thu

    Aug 20

    83°Lo 60°

    Mostly sunny

    Migraine Headache Weather
    • Hi
      RealFeel
      88°
    • Precip
      20%
    • Cloud
      Cover
      21%
    more
  • Fri

    Aug 21

    72°Lo 60°

    Clouds break for sun; colder

    Migraine Headache Weather
    • Hi
      RealFeel
      78°
    • Precip
      25%
    • Cloud
      Cover
      32%
    more
  • Sat

    Aug 22

    72°Lo 57°

    Sunshine

    Migraine Headache Weather
    • Hi
      RealFeel
      80°
    • Precip
      5%
    • Cloud
      Cover
      1%
    more
  • Sun

    Aug 23

    72°Lo 58°

    Considerable clouds

    Migraine Headache Weather
    • Hi
      RealFeel
      74°
    • Precip
      25%
    • Cloud
      Cover
      91%
    more
Next Previous
Hi 87° RealFeel® 87° Precipitation 25%

Day

N

E

S

W

  • WSW 8 mph
  • Gusts: 17 mph

Sunny and warm

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 61° RealFeel® 62° Precipitation 5%

Night

N

E

S

W

  • WSW 6 mph
  • Gusts: 17 mph

Clear

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Aug 19

more Historical Weather Data >
  Today Normal Record 8/19/2014
High 87° N/A N/A 70°
Low 61° N/A N/A 57°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:27 AM with 13:29 of sunlight, then sets at 7:56 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:05 AM with 11:30 of moolight, then sets at 10:35 PM

Castro Valley Weather Report

San Francisco: Seasonable Conditions to Persist Through Week

August 4, 2015; 5:50 PM ET

Dry and seasonable conditions will continue across the San Francisco Bay area this week. more >