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    • Today

      Apr 26

      54° /34°F
      Partial sunshine
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: High
    • Thu

      Apr 27

      52° /26°
      Mostly cloudy, a little rain
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Fri

      Apr 28

      47° /25°
      Cloudy with spotty showers
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Sat

      Apr 29

      31° /20°
      Colder with snow tapering off
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Sun

      Apr 30

      45° /29°
      Periods of sun; not as cold
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    54°Hi RealFeel® 60° Precipitation 25%
    Partial sunshine
    • NNW 8 mph
    • Gusts: 12 mph
    • Max UV Index: 8 (Very High)
    • Thunderstorms: 17%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    34°Lo RealFeel® 29° Precipitation 25%
    Mostly cloudy
    • S 7 mph
    • Gusts: 10 mph
    • Max UV Index: N/A
    • Thunderstorms: 24%
    • 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 Apr 26

    • Extreme
    • Very High
    • High
    • Moderate
    • Low
    • Tree Pollen

      High

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 4/26/2016
    High 54° 62° N/A 51°
    Low 34° 36° N/A 33°

    Sunrise/Sunset

    • Sunrise: 6:07 AM
    • Sunset: 7:48 PM
    • Duration: 13:41 hr

    Moonrise/Moonset

    • Moonrise: 6:33 AM
    • Moonset: 8:14 PM
    • Duration: 13:41 hr
    Astronomy

    Wed. Pollen

    Wed. Dust & Dander

    Wed. Wind Maps