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Personalized Forecasts

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    • Tonight

      Sep 23

      45° Lo F
      Occasional rain and drizzle
      • Stargazing
      • Weather
      • Cloud Cover: 99%
      • Precip: 80%
      • Hours of Precip: 9.5
    • Sun

      Sep 24

      53° /43°
      Cool with periods of rain
      • Poor
      • for stargazing
      • Cloud Cover: 93%
      • Precip: 60%
      • Hours of Precip: 5
      More
    • Mon

      Sep 25

      54° /38°
      Mainly cloudy, a shower; cool
      • Poor
      • for stargazing
      • Cloud Cover: 74%
      • Precip: 25%
      • Hours of Precip: 1.5
      More
    • Tue

      Sep 26

      62° /45°
      Chilly with clouds and sun
      • Fair
      • for stargazing
      • Cloud Cover: 49%
      • Precip: 9%
      • Hours of Precip: 0
      More
    • Wed

      Sep 27

      64° /47°
      Partial sunshine
      • Good
      • for stargazing
      • Cloud Cover: 39%
      • Precip: 8%
      • Hours of Precip: 0
      More

    Day

    54°Hi RealFeel® 59° Precipitation 85%
    Cooler with occasional rain and drizzle
    • Winds from the
    • E 5 mph
    • Gusts: 9 mph
    • Max UV Index: 3 (Moderate)
    • Thunderstorms: 24%
    • Precipitation: 0.87 in
    • Rain: 0.87 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 6 hrs
    • Hours of Rain: 6 hrs

    Night

    45°Lo RealFeel® 42° Precipitation 80%
    Occasional rain and drizzle
    • Winds from the
    • NE 4 mph
    • Gusts: 6 mph
    • Max UV Index: N/A
    • Thunderstorms: 24%
    • Precipitation: 0.26 in
    • Rain: 0.26 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 3.5 hrs
    • Hours of Rain: 3.5 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/23/2016
    High 54° 75° N/A 81°
    Low 45° 45° N/A 52°

    Sunrise/Sunset

    • Sunrise: 6:49 AM
    • Sunset: 6:57 PM
    • Duration: 12:08 hr

    Moonrise/Moonset

    • Moonrise: 10:10 AM
    • Moonset: 9:12 PM
    • Duration: 11:02 hr
    Astronomy

    Solunar Information for Boulder, CO

    Thu, Sep 28
    First
    Thu, Oct 5
    Full
    Thu, Oct 12
    Last
    Thu, Oct 19
    New

    Sat. Stargazing