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    • Fri

      Oct 21

      57° /50°F
      Mostly cloudy
      • Ragweed Pollen
      • Weather
      • Precip: 25%
      • Wind Speed: 13 mph
      • Cloud Cover: 82%
    • Sat

      Oct 22

      66° /41°
      Clouds breaking for some sun
      • Ragweed Pollen
      • Weather
      • Precip: 25%
      • Wind Speed: 13 mph
      • Cloud Cover: 57%
      More
    • Sun

      Oct 23

      54° /32°
      Mostly sunny
      • Ragweed Pollen
      • Weather
      • Precip: 15%
      • Wind Speed: 10 mph
      • Cloud Cover: 10%
      More
    • Mon

      Oct 24

      52° /33°
      Brilliant sunshine
      • Ragweed Pollen
      • Weather
      • Precip: 15%
      • Wind Speed: 4 mph
      • Cloud Cover: 5%
      More
    • Tue

      Oct 25

      53° /41°
      Partly sunny
      • Ragweed Pollen
      • Weather
      • Precip: 16%
      • Wind Speed: 7 mph
      • Cloud Cover: 44%
      More

    Day

    57°Hi RealFeel® 55° Precipitation 25%
    Mostly cloudy
    • SW 13 mph
    • Gusts: 26 mph
    • Max UV Index: 2 (Low)
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    50°Lo RealFeel® 45° Precipitation 25%
    Partly cloudy
    • WSW 8 mph
    • Gusts: 17 mph
    • Max UV Index: N/A
    • Thunderstorms: 6%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 10/21/2015
    High 57° 63° 87° (1979) 77°
    Low 50° 41° 21° (1925) 53°

    Sunrise/Sunset

    • Sunrise: 7:15 AM
    • Sunset: 6:04 PM
    • Duration: 10:49 hr

    Moonrise/Moonset

    • Moonrise: 11:16 PM
    • Moonset: 1:54 PM
    • Duration: 14:38 hr
    Astronomy

    Ottawa Weather Report

    Chilly winds to howl across Great Lakes early this week

    September 26, 2016; 4:43 PM ET

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