How to help: Donate now to assist victims of the 2017 hurricane season

           , °F

Personalized Forecasts

Featured Forecast

My Favorite Forecasts

    My Recent Locations

    • Today

      Sep 26

      61° /46°F
      Partly sunny and cool
      • 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
    • Wed

      Sep 27

      59° /47°
      A stray afternoon t-shower
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Sep 28

      56° /45°
      Cloudy with a little rain
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Fri

      Sep 29

      67° /46°
      Mainly cloudy and warmer
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Sat

      Sep 30

      75° /49°
      Clouds giving way to sun
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More

    Day

    61°Hi RealFeel® 75° Precipitation 25%
    Cool with a blend of sun and clouds
    • Winds from the
    • E 4 mph
    • Gusts: 9 mph
    • Max UV Index: 10 (Extreme)
    • Thunderstorms: 12%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    46°Lo RealFeel® 46° Precipitation 25%
    Mostly cloudy
    • Winds from the
    • NW 5 mph
    • Gusts: 7 mph
    • 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

    Boulder Pollen Levels Sep 26

    • 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 9/26/2016
    High 61° 73° N/A 77°
    Low 46° 44° N/A 43°

    Sunrise/Sunset

    • Sunrise: 6:52 AM
    • Sunset: 6:52 PM
    • Duration: 12:00 hr

    Moonrise/Moonset

    • Moonrise: 12:59 PM
    • Moonset: 11:05 PM
    • Duration: 10:06 hr
    Astronomy

    Tue. Pollen

    Tue. Dust & Dander

    Tue. Wind Maps