• Today

    Jun 25

    84°Lo 54°

    Sunny and very warm

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Jun 26

    80°Lo 56°

    A full day of sunshine

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Mon

    Jun 27

    81°Lo 55°

    Mostly sunny and nice

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Tue

    Jun 28

    83°Lo 55°

    Plenty of sunshine

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Wed

    Jun 29

    82°Lo 55°

    Plenty of sunshine

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Clear 66° Lo 58° RealFeel® 63° / 56°

N

E

S

W

  • Precipitation: 0%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 79%
  • Cloud Cover: 9%
  • Dew Point: 54° F
  • Visibility: 10 mi
8 mph

Temperature History - Jun 26

more Historical Weather Data >
  Today Normal Record 6/26/2015
High 80° 76° N/A 85°
Low 56° 55° N/A 58°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:49 AM with 14:45 of sunlight, then sets at 8:34 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:16 AM with 11:55 of moolight, then sets at 12:11 PM

Castro Valley Weather Report

Extreme heat to exacerbate southwestern US wildfire threat into next week

June 25, 2016; 7:30 AM ET

Another round of sizzling heat threatens to aggravate the ongoing wildfire situation across the southwestern United States through early week. more >

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps