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    Next 5 Days
    • Current Weather

      58° F
      Cloudy
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Relative Humidity: 34%
      • Yesterday Temp: 49°
      • RealFeel: 54°
    • Today

      Mar 27

      58° Hi
      Milder with clouds and sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      } Day Details
    • Tomorrow

      Mar 28

      48° Hi
      Rain and drizzle
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      } Day Details
    • Wednesday

      Mar 29

      41° Hi
      A bit of morning rain; cooler
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      } Day Details
    Next 6 Hours
    • 4PM

      Mar 27

      58°
      Mostly cloudy
      Precip 7%
    • 5PM

      57°
      Cloudy
      Precip 7%
    • 6PM

      54°
      Cloudy
      Precip 7%
    • 7PM

      51°
      Mostly cloudy
      Precip 10%
    • 8PM

      49°
      Thunderstorms
      Precip 52%
    • 9PM

      46°
      Cloudy
      Precip 48%

    Castle Rock Pollen Levels Mar 27

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

      Moderate

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Strong winds and snow showers will make for treacherous travel in the Northeast through midweek.
    Plummeting temperatures, blowing snow to threaten northeastern US

    Allergies Live Feed

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps