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    • 2AM

      Apr 25

      57°
      Cloudy
      Precip 0%
    • 3AM

      56°
      Cloudy
      Precip 0%
    • 4AM

      55°
      Cloudy
      Precip 0%
    • 5AM

      55°
      Cloudy
      Precip 0%
    • 6AM

      54°
      Cloudy
      Precip 0%
    • 7AM

      55°
      Cloudy
      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?