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    • Today

      Sep 25

      85° /54°
      A heavy afternoon t-storm
      • Poor
      • for home energy
      • Avg RealFeel: 71°
      • Hi RealFeel: 90°
      • Wind Speed: 9 mph
      More
    • Mon

      Sep 26

      67° /44°
      Mostly sunny and cooler
      • Poor
      • for home energy
      • Avg RealFeel: 54°
      • Hi RealFeel: 66°
      • Wind Speed: 13 mph
      More
    • Tue

      Sep 27

      66° /46°
      Partly sunny, breezy and cool
      • Poor
      • for home energy
      • Avg RealFeel: 55°
      • Hi RealFeel: 65°
      • Wind Speed: 14 mph
      More
    • Wed

      Sep 28

      64° /49°F
      Clouds and sun with a shower
      • Poor
      • for home energy
      • Avg RealFeel: 56°
      • Hi RealFeel: 65°
      • Wind Speed: 8 mph
    • Thu

      Sep 29

      71° /49°
      Mostly sunny and beautiful
      • Poor
      • for home energy
      • Avg RealFeel: 59°
      • Hi RealFeel: 72°
      • Wind Speed: 8 mph
      More
    53°/49° RealFeel® 51°/46°
    Clear
    • 6 mph
    • Precipitation: 0%
    • Rain: 0 in
    • Snow: 0 in
    • Humidity: 87%
    • Cloud Cover: 2%
    • Dew Point: 47° F
    • Visibility: 10 mi

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/28/2015
    High 64° 72° 93° (1953) 80°
    Low 49° 48° 25° (1942) 60°

    Sunrise/Sunset

    • Sunrise: 6:50 AM
    • Sunset: 6:41 PM
    • Duration: 11:51 hr

    Moonrise/Moonset

    • Moonrise: 4:25 AM
    • Moonset: 5:44 PM
    • Duration: 13:19 hr
    Astronomy

    Ottawa Weather Report

    Chilly winds to howl across Great Lakes early this week

    September 25, 2016; 1:13 PM ET

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

    Wed. Home Energy Efficiency

    Wed. Degree Days

    Wed. UV Index