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    • Today

      Sep 26

      69° /46°
      Clearing and breezy
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 69°
      • UV: 4 - Moderate
      • Cloud Cover: 14%
      More
    • Tue

      Sep 27

      67° /49°
      Mostly sunny and breezy
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 66°
      • UV: 4 - Moderate
      • Cloud Cover: 13%
      More
    • Wed

      Sep 28

      63° /52°
      Clouds and sun with a shower
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 60°
      • UV: 4 - Moderate
      • Cloud Cover: 69%
      More
    • Thu

      Sep 29

      68° /52°
      Mostly sunny and breezy
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 67°
      • UV: 4 - Moderate
      • Cloud Cover: 22%
      More
    • Fri

      Sep 30

      70° /51°F
      Partly sunny, showers around
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 72°
      • UV: 4 - Moderate
      • Cloud Cover: 45%
    61°/56° RealFeel® 60°/55°
    Partly to mostly cloudy
    • 5 mph
    • Precipitation: 3%
    • Rain: 0 in
    • Snow: 0 in
    • Humidity: 75%
    • Cloud Cover: 50%
    • Dew Point: 50° F
    • Visibility: 10 mi

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/30/2015
    High 70° 71° 94° (1971) 68°
    Low 51° 47° 26° (1899) 42°

    Sunrise/Sunset

    • Sunrise: 6:52 AM
    • Sunset: 6:38 PM
    • Duration: 11:46 hr

    Moonrise/Moonset

    • Moonrise: 6:23 AM
    • Moonset: 6:43 PM
    • Duration: 12:20 hr
    Astronomy

    Ottawa Weather Report

    Chilly winds to howl across Great Lakes early this week

    September 26, 2016; 3:03 AM ET

    Gusty winds will accompany a push of chilly air across the Great Lakes from Sunday night through Tuesday. More >

    Fri. Migraine Headache

    Fri. UV Index