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    Next 5 Days
    Next 6 Hours
    • 4AM

      Apr 25

      52°
      Partly cloudy
      Precip 0%
    • 5AM

      51°
      Mostly clear
      Precip 0%
    • 6AM

      49°
      Partly cloudy
      Precip 0%
    • 7AM

      51°
      Partly sunny
      Precip 0%
    • 8AM

      54°
      Mostly sunny
      Precip 0%
    • 9AM

      59°
      Sunny
      Precip 0%
    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?