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    Next 5 Days
    • Current Weather

      52° F
      Cloudy
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Relative Humidity: 96%
      • Yesterday Temp: 48°
      • RealFeel: 56°
    • Today

      Apr 24

      74° Hi
      Sun and some clouds
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      } Day Details
    • Tomorrow

      Apr 25

      69° Hi
      Mostly sunny and beautiful
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      } Day Details
    • Thursday

      Apr 26

      66° Hi
      Low clouds followed by sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      } Day Details
    Next 6 Hours
    • 6AM

      Apr 24

      47°
      Mostly clear
      Precip 0%
    • 7AM

      48°
      Mostly sunny
      Precip 0%
    • 8AM

      52°
      Partly sunny
      Precip 0%
    • 9AM

      54°
      Partly sunny
      Precip 0%
    • 10AM

      59°
      Partly sunny
      Precip 0%
    • 11AM

      63°
      Partly sunny
      Precip 0%

    Santa Rosa Pollen Levels Apr 24

    • Extreme
    • Very High
    • High
    • Moderate
    • Low
    • Tree Pollen

      Moderate

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    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?

    Allergies Live Feed

    Tue. Pollen

    Tue. Dust & Dander

    Tue. Wind Maps