• Tonight

    Apr 20

    Lo 39°

    A shower early; partly cloudy

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

    Apr 21

    65°Lo 42°

    Partly sunny

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

    Apr 22

    75°Lo 44°

    A p.m. t-storm in spots

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

    Apr 23

    70°Lo 32°

    Mostly sunny and windy

    High indoor dust & dander levels
    • Precip
      16%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      24%
    more
  • Thu

    Apr 24

    60°Lo 34°

    Partly sunny

    Very High indoor dust & dander levels
    • Precip
      18%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      26%
    more
Next Previous
Hi 67° RealFeel® 72° Precipitation 35%

Day

N

E

S

W

  • NNE 7 mph
  • Gusts: 18 mph

Times of clouds and sun

  • Max UV Index: 7 (High)
  • Thunderstorms: 40%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 39° RealFeel® 36° Precipitation 40%

Night

N

E

S

W

  • NNW 4 mph
  • Gusts: 11 mph

A shower in spots early this evening; otherwise, partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • Precipitation: 0.01 in
  • Rain: 0.01 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs

Castle Rock Pollen Levels - April 20

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    High

  • Mold

    Pollen

    Low

Temperature History - Apr 20

more Historical Weather Data >
  Today Normal Record 4/20/2013
High 67° 62° 83° (1989) 58°
Low 39° 34° 13° (1966) 31°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:15 AM with 13:27 of sunlight, then sets at 7:42 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:23 AM with 10:16 of moolight, then sets at 10:39 AM

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