• Today

    Apr 21

    67°Lo 51°

    Low clouds, fog breaking

    Excellent for driving
    • Precip
      25%
    • Hours of Precip
      0
    • Rain
      0 in
  • Wed

    Apr 22

    66°Lo 49°

    Some sun, cool; a p.m. shower

    Very Good for driving
    • Precip
      52%
    • Hours of Precip
      0.5
    • Rain
      0.04 in
    more
  • Thu

    Apr 23

    66°Lo 50°

    Periods of sun with a shower

    Very Good for driving
    • Precip
      40%
    • Hours of Precip
      1.5
    • Rain
      0.03 in
    more
  • Fri

    Apr 24

    68°Lo 48°

    Cool with clouds and sun

    Very Good for driving
    • Precip
      25%
    • Hours of Precip
      0
    • Rain
      0 in
    more
  • Sat

    Apr 25

    71°Lo 50°

    Partly sunny and cool

    Excellent for driving
    • Precip
      6%
    • Hours of Precip
      0
    • Rain
      0 in
    more
Next Previous
Hi 67° RealFeel® 73° Precipitation 25%

Day

N

E

S

W

  • S 7 mph
  • Gusts: 13 mph

Cool with low clouds and fog giving way to some sun

  • Max UV Index: 7 (High)
  • Thunderstorms: 10%
  • 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® 50° Precipitation 25%

Night

N

E

S

W

  • SSE 5 mph
  • Gusts: 10 mph

Partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 6%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2014
High 67° N/A N/A 80°
Low 51° N/A N/A 58°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:17 AM with 13:14 of sunlight, then sets at 7:31 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:43 AM with 14:10 of moolight, then sets at 10:53 PM

Simi Valley Weather Report

Homes Evacuated After California Wildfire Quickly Expands Near Los Angeles

April 21, 2015; 5:29 AM ET

The Highway Fire started around 6:10 p.m. PDT Saturday near Corona, California, in the Prado Dam area in Riverside County, and grew from 30 to 175 acres in a matter of three hours. more >

Travel Weather Forecast

Apr 21, 2015; 5:25 AM ET United States travel weather forecast

Tue. Travel Weather

48 Hour Precipitation Forecast

Tue. Driving Weather