• Clear 24°
    Lawn Mowing Current Weather
    • Yesterday
      Precip
      0.01 in
    • UV
      0 - Moderate
    • RealFeel
      -1°
  • Tonight

    Mar 28

    Lo 9°

    Clear and cold

    Lawn Mowing Weather
    • Hours of Precip
      0
    • Precip
      35%
    • Hi
      RealFeel
      18°
    Day Details >
  • Tomorrow

    Mar 29

    Hi 37°

    Mostly cloudy and not as cold

    Poor for lawn mowing
    • Hours of Precip
      2
    • Precip
      2%
    • Hi
      RealFeel
      30°
    Day Details >
  • Monday

    Mar 30

    Hi 38°

    Rain and snow showers; breezy

    Poor for lawn mowing
    • Hours of Precip
      6.5
    • Precip
      74%
    • Hi
      RealFeel
      27°
    Day Details >
Next

1-3 inches of snow, mixed with rain at times, tomorrow evening through late Monday night

3/28 3/29 Now: 8:47pm
PM 8-12
  • 8pm Clear 23° 0%
  • 9pm Clear 19° 0%
  • 10pm Clear 16° 0%
  • 11pm Clear 16° 0%
  • 12am Clear 14° 0%
AM 7-12
  • 7am Sunny 18° 0%
  • 8am Mostly cloudy 20° 0%
  • 9am Mostly cloudy 23° 0%
  • 10am Mostly cloudy 27° 0%
  • 11am Mostly cloudy 30° 0%
  • 12pm Mostly cloudy 32° 0%
PM 1-6
  • 1pm Mostly cloudy 35° 0%
  • 2pm Mostly cloudy 37° 0%
  • 3pm Mostly cloudy 35° 0%
  • 4pm Mostly cloudy 33° 0%
  • 5pm Mostly cloudy 31° 0%
  • 6pm Mostly cloudy 32° 0%
Hourly Forecast >
Mar 28, 2015; 6:06 PM ET
Five-day Weather Forecast for Ottawa, ON
Ottawa, ON Weather Forecast

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Why Do Leaves Change Color?

Sep 20, 2011; 5:00 AM ET Why do leaves change from green to beautiful shades of red, orange and yellow in the fall?

Current Drought Status

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Sat. Overnight Freeze

Sat. Degree Days

Sat. Evapotranspiration