• Early AM

    Feb 6

    Lo 44°

    Partly cloudy

    Migraine Headache Weather
    • Hi
      RealFeel
      63°
    • UV
      4 - Moderate
    • Cloud
      Cover
      28%
    more
  • Today

    Feb 6

    65°Lo 45°

    Sun and some clouds

    Beneficial weather for migraines
    • Hi
      RealFeel
      68°
    • UV
      4 - Moderate
    • Cloud
      Cover
      0%
  • Sun

    Feb 7

    67°Lo 47°

    Plenty of sunshine

    Beneficial weather for migraines
    • Hi
      RealFeel
      69°
    • UV
      4 - Moderate
    • Cloud
      Cover
      0%
    more
  • Mon

    Feb 8

    70°Lo 48°

    Plenty of sunshine

    Beneficial weather for migraines
    • Hi
      RealFeel
      70°
    • UV
      4 - Moderate
    • Cloud
      Cover
      2%
    more
  • Tue

    Feb 9

    70°Lo 45°

    Plenty of sunshine

    Beneficial weather for migraines
    • Hi
      RealFeel
      73°
    • UV
      4 - Moderate
    • Cloud
      Cover
      12%
    more
Next Previous
Hi 65° RealFeel® 68° Precipitation 4%

Day

N

E

S

W

  • NNE 5 mph
  • Gusts: 7 mph

Sun and some clouds

  • Max UV Index: 3 (Moderate)
  • 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 45° RealFeel® 46° Precipitation 2%

Night

N

E

S

W

  • ENE 4 mph
  • Gusts: 5 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 - Feb 6

more Historical Weather Data >
  Today Normal Record 2/6/2015
High 65° 60° N/A 60°
Low 45° 44° N/A 54°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:08 AM with 10:30 of sunlight, then sets at 5:38 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:26 AM with 10:33 of moolight, then sets at 3:59 PM

Castro Valley Weather Report

Super Bowl Sunday: Break in wet El Nino-driven weather pattern to arrive in time for big game

February 6, 2016; 5:40 AM ET

Dry conditions and above-normal temperatures are expected for Super Bowl Sunday in Santa Clara, California. more >

Health Weather

Jan 19, 2016; 10:05 AM ET How the weather impacts people's health

Sat. Migraine Headache

Sat. UV Index