• Tonight

    Apr 20

    Lo 54°

    Increasing cloudiness

    Dust & Dander Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
  • Mon

    Apr 21

    80°Lo 52°

    Partly sunny

    Low indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Tue

    Apr 22

    71°Lo 51°

    Not as warm

    Low indoor dust & dander levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Wed

    Apr 23

    73°Lo 52°

    Partly sunny and cool

    Low indoor dust & dander levels
    • Precip
      1%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      26%
    more
  • Thu

    Apr 24

    77°Lo 54°

    Partly sunny

    Low indoor dust & dander levels
    • Precip
      1%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      26%
    more
Next Previous
Hi 79° RealFeel® 85° Precipitation 1%

Day

N

E

S

W

  • S 5 mph
  • Gusts: 12 mph

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 54° RealFeel® 54° Precipitation 3%

Night

N

E

S

W

  • E 2 mph
  • Gusts: 7 mph

Partly cloudy this evening followed by late-night low clouds

  • 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

Simi Valley Pollen Levels - April 20

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Apr 20

more Historical Weather Data >
  Today Normal Record 4/20/2013
High 79° N/A N/A 91°
Low 54° N/A N/A 60°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:18 AM with 13:12 of sunlight, then sets at 7:30 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:09 AM with 10:39 of moolight, then sets at 10:48 AM

Top Story

Simi Valley Weather Report

Warm Temperatures but No Rain for Los Angeles

April 20, 2014; 6:30 PM ET

A storm system will move into California on Tuesday but it will not press far enough south to bring needed rains to the Los Angeles area. more >

Is it a Cold or the Flu?

Apr 19, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps