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    • Tonight

      Apr 29

      20° Lo
      A little snow, Tr-1"; cold
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More
    • Sun

      Apr 30

      45° /29°F
      Partly sunny; windy, warmer
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
    • Mon

      May 1

      53° /30°
      Warmer with clouds and sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More
    • Tue

      May 2

      54° /32°
      Cool with rain and drizzle
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More
    • Wed

      May 3

      48° /28°
      Mostly cloudy, a little rain
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More

    Day

    45°Hi RealFeel® 41° Precipitation 8%
    Partly sunny, windy and warmer
    • N 16 mph
    • Gusts: 34 mph
    • Max UV Index: 9 (Very High)
    • Thunderstorms: 7%
    • 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® 22° Precipitation 8%
    Partly cloudy
    • SW 8 mph
    • Gusts: 13 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 30

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

      Moderate

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 4/30/2016
    High 45° 63° N/A 35°
    Low 29° 38° N/A 31°

    Sunrise/Sunset

    • Sunrise: 6:02 AM
    • Sunset: 7:52 PM
    • Duration: 13:50 hr

    Moonrise/Moonset

    • Moonrise: 9:55 AM
    • Moonset: 12:39 AM
    • Duration: 14:44 hr
    Astronomy

    Sun. Pollen

    Sun. Dust & Dander

    Sun. Wind Maps