• Early AM

    Apr 21

    Lo 39°

    Partly to mostly cloudy

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

    Apr 21

    64°Lo 42°

    Partly sunny

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

    Apr 22

    75°Lo 45°

    A thunderstorm in spots

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

    Apr 23

    66°Lo 31°

    Sunshine and breezy

    High indoor dust & dander levels
    • Precip
      20%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      25%
    more
  • Thu

    Apr 24

    67°Lo 35°

    Partly sunny

    Very High indoor dust & dander levels
    • Precip
      4%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      26%
    more
Next Previous
Hi 64° RealFeel® 69° Precipitation 8%

Day

N

E

S

W

  • SE 7 mph
  • Gusts: 12 mph

Partly sunny

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 42° RealFeel® 36° Precipitation 7%

Night

N

E

S

W

  • S 7 mph
  • Gusts: 11 mph

Mainly clear

  • Max UV Index: N/A
  • Thunderstorms: 7%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Castle Rock Pollen Levels - April 21

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    High

  • Mold

    Pollen

    Low

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2013
High 64° 63° 89° (1989) 61°
Low 42° 35° 14° (1907) 34°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:14 AM with 13:29 of sunlight, then sets at 7:43 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:15 AM with 10:29 of moolight, then sets at 11:44 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?

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps