• Tonight

    Jun 29

    Lo 56°

    Partly cloudy

    Morning School Bus Weather
    • T-storms
      1%
    • Precip
      3%
    • Wind
      Gust
      16 mph
    more
  • Tue

    Jun 30

    87°Lo 59°

    Partly sunny and warmer

    Excellent at the bus stop
    • T-storms
      4%
    • Precip
      3%
    • Wind
      Gust
      15 mph
    more
  • Wed

    Jul 1

    88°Lo 62°

    Partly sunny

    Excellent at the bus stop
    • T-storms
      1%
    • Precip
      1%
    • Wind
      Gust
      18 mph
  • Thu

    Jul 2

    81°Lo 61°

    A blend of sun and clouds

    Excellent at the bus stop
    • T-storms
      6%
    • Precip
      25%
    • Wind
      Gust
      17 mph
    more
  • Fri

    Jul 3

    79°Lo 60°

    Pleasant with some sun

    Excellent at the bus stop
    • T-storms
      3%
    • Precip
      4%
    • Wind
      Gust
      17 mph
    more
Next Previous
Hi 88° RealFeel® 91° Precipitation 1%

Day

N

E

S

W

  • WNW 9 mph
  • Gusts: 18 mph

Partly sunny

  • Max UV Index: 9 (Very High)
  • Thunderstorms: 1%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 62° RealFeel® 61° Precipitation 10%

Night

N

E

S

W

  • WSW 6 mph
  • Gusts: 14 mph

Mainly clear

  • Max UV Index: N/A
  • Thunderstorms: 4%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Jul 1

more Historical Weather Data >
  Today Normal Record 7/1/2014
High 88° N/A N/A 75°
Low 62° N/A N/A 55°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:50 AM with 14:44 of sunlight, then sets at 8:34 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:11 PM with 10:28 of moolight, then sets at 6:39 AM

Castro Valley Weather Report

San Francisco: Warm, Dry Throughout the Week

June 29, 2015; 2:15 PM ET

The San Francisco area will remain dry and warm through midweek. more >

The AccuWeather RealFeel Temperature

May 17, 2012; 5:00 AM ET This product plays a big role as humidity rises.

Wed. Morning Bus Stop

Wed. UV Index

Wed. Wind Maps