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  • Wed

    May 11

    Partly sunny and pleasant 76°Lo 54°
    more
  • Thu

    May 12

    Intervals of clouds and sun 77°Lo 54°
    more
  • Fri

    May 13

    Mostly sunny 72°Lo 54°
    more
  • Sat

    May 14

    Partly sunny 71°Lo 56°
    more
  • Sun

    May 15

    A couple of showers possible 70°Lo 48°
Hi 70° RealFeel® 72° Precipitation 30%

Day

N

E

S

W

  • WSW 9 mph
  • Gusts: 25 mph

Intervals of clouds and sunshine with a couple of showers possible

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 15%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 48° RealFeel® 48° Precipitation 25%

Night

N

E

S

W

  • W 6 mph
  • Gusts: 21 mph

Partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 15%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - May 15

more Historical Weather Data >
  Today Normal Record 5/15/2015
High 70° 71° N/A 55°
Low 48° 51° N/A 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:58 AM with 14:14 of sunlight, then sets at 8:12 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:44 PM with 12:40 of moolight, then sets at 3:24 AM

Castro Valley Weather Report

San Francisco: Rain showers may dampen the Bay Area into weekend

May 6, 2016; 3:40 AM ET

While it will not be an all-day washout into Saturday morning, any developing thunderstorm could produce locally heavy rainfall and raise the risk for flash flooding and mudslides. more >

ABC 7 San Francisco Headlines

Thieves steal, crash new Meals on Wheels van in East Bay

A volunteer who begged thieves to not steal a Meals on Wheels van in Fremont Thursday morning says the carjackers didn't care and took it anyway.

Major earthquake due to strike San Andreas fault, expert says

Serial wife killer on death row offers info on where he buried body in exchange for execution date