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  • Fri

    Aug 5

    Abundant sunshine 78°Lo 56°
    more
  • Sat

    Aug 6

    Mostly sunny 76°Lo 57°
    more
  • Sun

    Aug 7

    Mostly sunny 76°Lo 63°
    more
  • Mon

    Aug 8

    Partly sunny 75°Lo 56°
  • Tue

    Aug 9

    Mostly sunny 77°Lo 56°
    more
Hi 75° RealFeel® 80° Precipitation 0%

Day

N

E

S

W

  • SW 8 mph
  • Gusts: 23 mph

Partly sunny

  • 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 56° RealFeel® 53° Precipitation 0%

Night

N

E

S

W

  • SW 7 mph
  • Gusts: 20 mph

Partly cloudy

  • 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 8

more Historical Weather Data >
  Today Normal Record 8/8/2015
High 75° 78° N/A 72°
Low 56° 57° N/A 61°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:19 AM with 13:49 of sunlight, then sets at 8:08 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:56 AM with 11:34 of moolight, then sets at 11:30 PM

Castro Valley Weather Report

90-degree heat to build across northwestern US this week

July 26, 2016; 9:45 PM ET

Dangerous heat will surge northward and send temperatures rising across the northwestern United States this week. more >

ABC 7 San Francisco Headlines

Michelle Obama focuses on children in speech before Democratic National Convention

"I want a president who will teach our children that everyone in this country matters," the first lady told the crowd in Philadelphia Monday night.

Bernie Sanders: 'Hillary Clinton will make an outstanding president'

Comedian Sarah Silverman tells Bernie Sanders supporters they're being 'ridiculous'