• Sat

    Sep 27

    72°Lo 58°

    Partly sunny and comfortable

    Ragweed Pollen Weather
    • Precip
      2%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      45%
    more
  • Sun

    Sep 28

    76°Lo 58°

    Mostly sunny and pleasant

    Ragweed Pollen Weather
    • Precip
      1%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      24%
  • Mon

    Sep 29

    79°Lo 57°

    Sunny

    Ragweed Pollen Weather
    • Precip
      0%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      13%
    more
  • Tue

    Sep 30

    80°Lo 57°

    Sunshine

    Ragweed Pollen Weather
    • Precip
      0%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      6%
    more
  • Wed

    Oct 1

    83°Lo 60°

    Plenty of sunshine

    Ragweed Pollen Weather
    • Precip
      0%
    • Wind
      Speed
      3 mph
    • Cloud
      Cover
      0%
    more
Next Previous
Hi 76° RealFeel® 81° Precipitation 1%

Day

N

E

S

W

  • N 4 mph
  • Gusts: 16 mph

Mostly sunny and pleasant

  • Max UV Index: 5 (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 58° RealFeel® 58° Precipitation 5%

Night

N

E

S

W

  • W 2 mph
  • Gusts: 11 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 - Sep 28

more Historical Weather Data >
  Today Normal Record 9/28/2013
High 76° N/A N/A 77°
Low 58° N/A N/A 53°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:01 AM with 11:55 of sunlight, then sets at 6:56 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:16 AM with 10:33 of moolight, then sets at 9:49 PM

Top Story

Castro Valley Weather Report

Dry, Sunny Weather Continues for Much of the Week in San Francisco

September 22, 2014; 8:19 AM ET

Sunshine will continue for much of the region this week. more >