• Tonight

    May 1

    Lo 51°

    Increasing cloudiness

    Fishing Weather
    • Precip
      7%
    • Cloud
      Cover
      11%
    • Wind
      Speed
      7 mph
    more
  • Mon

    May 2

    76°Lo 51°

    Low clouds, then sun

    Very Good for fishing
    • Precip
      7%
    • Cloud
      Cover
      53%
    • Wind
      Speed
      7 mph
  • Tue

    May 3

    71°Lo 54°

    Beautiful with periods of sun

    Very Good for fishing
    • Precip
      14%
    • Cloud
      Cover
      70%
    • Wind
      Speed
      7 mph
    more
  • Wed

    May 4

    65°Lo 52°

    Considerable cloudiness

    Good for fishing
    • Precip
      12%
    • Cloud
      Cover
      83%
    • Wind
      Speed
      12 mph
    more
  • Thu

    May 5

    63°Lo 49°

    An afternoon shower

    Poor for fishing
    • Precip
      40%
    • Cloud
      Cover
      46%
    • Wind
      Speed
      10 mph
    more
Next Previous
Hi 76° RealFeel® 81° Precipitation 7%

Day

N

E

S

W

  • W 7 mph
  • Gusts: 13 mph

Low clouds giving way to sunshine

  • 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 51° RealFeel® 52° Precipitation 3%

Night

N

E

S

W

  • W 4 mph
  • Gusts: 9 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 - May 2

more Historical Weather Data >
  Today Normal Record 5/2/2015
High 76° 69° N/A 72°
Low 51° 50° N/A 53°

Solunar Information for Castro Valley, CA

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:11 AM with 13:49 of sunlight, then sets at 8:00 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:37 AM with 11:51 of moolight, then sets at 3:28 PM

Fri, May 6
New
Fri, May 13
First
Sat, May 21
Full
Sun, May 29
Last

Castro Valley Weather Report

San Francisco: Rain showers may dampen the Bay Area for midweek

May 1, 2016; 9:07 PM ET

Dry conditions will dominate the region through early this week in the Bay Area before rain tries to return for the middle of the week. more >

Trout Tactics

Apr 4, 2012; 5:00 AM ET We spend a day with world-renowned fly fisherman Joe Humphreys, who hosted a nationally broadcast fly fishing show on ESPN, and taught his craft for over 40 years. Some of his better-known pupils include former President Jimmy Carter and basketball coach Bobby Knight. Violeta Yas reports.

Mon. Fronts & Pressure

Mon. Fishing Weather