, °F

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    Next 5 Days
    • Current Weather

      38° F
      Cloudy
      Stargazing
      • Visibility: 5 mi
      • Cloud Cover: 98%
      • Ceiling: 2800 ft
    • Tonight

      Apr 24

      28° Lo
      Partly cloudy
      • Stargazing
      • Weather
      • Cloud Cover: 64%
      • Precip: 25%
      • Hours of Precip: 6
      } Day Details
    • Tomorrow

      Apr 25

      65° Hi
      Sunny
      • Fair
      • for stargazing
      • Cloud Cover: 30%
      • Precip: 7%
      • Hours of Precip: 0
      } Day Details
    • Thursday

      Apr 26

      56° Hi
      Cooler
      • Very Good
      • for stargazing
      • Cloud Cover: 0%
      • Precip: 2%
      • Hours of Precip: 0
      } Day Details
    Next 6 Hours
    • 7PM

      Apr 24

      38°
      Cloudy
      Precip 31%
    • 8PM

      38°
      Cloudy
      Precip 16%
    • 9PM

      38°
      Cloudy
      Precip 16%
    • 10PM

      37°
      Cloudy
      Precip 16%
    • 11PM

      36°
      Mostly cloudy
      Precip 16%
    • 12AM

      35°
      Mostly cloudy
      Precip 16%
    Every year, thousands of runners prepare for big races such as the Boston, New York and Chicago marathons. To prepare properly, runners have to know how temperatures affect their running performance.
    How does temperature affect your running?

    Sunrise/Sunset

    • Sunrise: 6:10 AM
    • Sunset: 7:47 PM
    • Duration: 13:37 hr

    Moonrise/Moonset

    • Moonrise: 2:14 PM
    • Moonset: 4:03 AM
    • Duration: 13:49 hr
    Astronomy

    Solunar Information for Thornton, CO

    Mon, Apr 30
    Full
    Tue, May 8
    Last
    Tue, May 15
    New
    Tue, May 22
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    Astronomy Live Feed

    Tue. Stargazing