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    • Today

      Dec 4

      54° /29°F
      Mostly sunny
      • 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: Low
    • Mon

      Dec 5

      50° /11°
      Mostly cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Dec 6

      29° /7°
      Much colder; p.m. snow, 2-4"
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Dec 7

      15° /-3°
      Cloudy, a bit of snow; colder
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Dec 8

      26° /9°
      Mostly sunny and not as cold
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    54°Hi RealFeel® 55° Precipitation 0%
    Mostly sunny
    • SSW 7 mph
    • Gusts: 12 mph
    • Max UV Index: 3 (Moderate)
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    29°Lo RealFeel® 21° Precipitation 2%
    Partly cloudy
    • SSW 9 mph
    • Gusts: 13 mph
    • 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

    Castle Rock Pollen Levels Dec 4

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

      Low

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 12/4/2015
    High 54° 44° N/A 60°
    Low 29° 18° N/A 26°

    Sunrise/Sunset

    • Sunrise: 7:04 AM
    • Sunset: 4:36 PM
    • Duration: 9:32 hr

    Moonrise/Moonset

    • Moonrise: 10:49 AM
    • Moonset: 9:30 PM
    • Duration: 10:41 hr
    Astronomy

    Sun. Pollen

    Sun. Dust & Dander

    Sun. Wind Maps