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    • Today

      Sep 27

      71° /49°
      Mostly sunny and breezy
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 70°
      • UV: 4 - Moderate
      • Cloud Cover: 25%
      More
    • Wed

      Sep 28

      63° /51°
      A brief shower or two
      • Neutral
      • weather for migraines
      • Hi RealFeel: 59°
      • UV: 2 - Low
      • Cloud Cover: 89%
      More
    • Thu

      Sep 29

      71° /55°
      Partly sunny, a shower or two
      • Neutral
      • weather for migraines
      • Hi RealFeel: 69°
      • UV: 4 - Moderate
      • Cloud Cover: 45%
      More
    • Fri

      Sep 30

      65° /56°F
      Clearing and spotty showers
      • Neutral
      • weather for migraines
      • Hi RealFeel: 64°
      • UV: 4 - Moderate
      • Cloud Cover: 84%
    • Sat

      Oct 1

      69° /52°
      Mostly cloudy with a shower
      • Beneficial
      • weather for migraines
      • Hi RealFeel: 68°
      • UV: 4 - Moderate
      • Cloud Cover: 77%
      More
    65°/60° RealFeel® 64°/56°
    A couple of showers
    • 10 mph
    • Precipitation: 60%
    • Rain: 0.08 in
    • Snow: 0 in
    • Humidity: 75%
    • Cloud Cover: 70%
    • Dew Point: 55° F
    • Visibility: 9 mi

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/30/2015
    High 65° 71° 94° (1971) 68°
    Low 56° 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 27, 2016; 8:03 AM ET

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

    Fri. Migraine Headache

    Fri. UV Index