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Personalized Forecasts

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    • Mon

      Oct 17

      60° /42°
      Cloudy
      • Ragweed Pollen
      • Weather
      • Precip: 25%
      • Wind Speed: 17 mph
      • Cloud Cover: 97%
      More
    • Tue

      Oct 18

      61° /41°
      Sunny
      • Ragweed Pollen
      • Weather
      • Precip: 5%
      • Wind Speed: 5 mph
      • Cloud Cover: 2%
      More
    • Wed

      Oct 19

      61° /42°
      Mostly cloudy
      • Ragweed Pollen
      • Weather
      • Precip: 25%
      • Wind Speed: 14 mph
      • Cloud Cover: 81%
      More
    • Thu

      Oct 20

      59° /40°F
      Periods of rain
      • Ragweed Pollen
      • Weather
      • Precip: 65%
      • Wind Speed: 10 mph
      • Cloud Cover: 96%
    • Fri

      Oct 21

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

    Day

    59°Hi RealFeel® 56° Precipitation 65%
    Periods of rain
    • S 10 mph
    • Gusts: 22 mph
    • Max UV Index: 1 (Low)
    • Thunderstorms: 12%
    • Precipitation: 0.25 in
    • Rain: 0.25 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 3.5 hrs
    • Hours of Rain: 3.5 hrs

    Night

    40°Lo RealFeel® 27° Precipitation 59%
    Overcast with a little rain
    • WSW 14 mph
    • Gusts: 29 mph
    • Max UV Index: N/A
    • Thunderstorms: 24%
    • Precipitation: 0.1 in
    • Rain: 0.1 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 2 hrs
    • Hours of Rain: 2 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 10/20/2015
    High 59° 63° 89° (1953) 76°
    Low 40° 41° 20° (1930) 53°

    Sunrise/Sunset

    • Sunrise: 7:14 AM
    • Sunset: 6:06 PM
    • Duration: 10:52 hr

    Moonrise/Moonset

    • Moonrise: 10:16 PM
    • Moonset: 1:05 PM
    • Duration: 14:49 hr
    Astronomy

    Ottawa Weather Report

    Chilly winds to howl across Great Lakes early this week

    September 27, 2016; 5:03 AM ET

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