• Mostly sunny 31°
    Snow Days Current Weather
    • Wind
      Chill
      24°
    • Yesterday
      Precip
      0 in
    • Cloud
      Cover
      25%
  • Today

    Mar 29

    Hi 38°

    Not as cold this afternoon

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    Day Details >
  • Tomorrow

    Mar 30

    Hi 41°

    Rain and snow showers; windy

    Unlikely for a snow day
    • Snow
      60%
    • Ice
      0%
    • Snow
      1.26 in
    Day Details >
  • Tuesday

    Mar 31

    Hi 34°

    Cold with partial sunshine

    Very Unlikely for a snow day
    • Snow
      3%
    • Ice
      0%
    • Snow
      0 in
    Day Details >
Next

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

3/29 3/30 Now: 12:27pm
PM 12-4
  • 12pm Mostly sunny 31° 0%
  • 1pm Mostly sunny 33° 0%
  • 2pm Mostly sunny 35° 0%
  • 3pm Mostly sunny 36° 0%
  • 4pm Mostly sunny 38° 0%
PM 11-4
  • 11pm Mostly cloudy 29° 7%
  • 12am Mostly cloudy 29° 7%
  • 1am Mostly cloudy 30° 11%
  • 2am Cloudy 32° 41%
  • 3am Cloudy 32° 44%
  • 4am Snow 32° 48%
AM 5-10
  • 5am Cloudy 32° 49%
  • 6am Cloudy 32° 47%
  • 7am Snow 32° 55%
  • 8am Cloudy 33° 49%
  • 9am Rain and snow 35° 57%
  • 10am Flurries 36° 49%
Hourly Forecast >
Mar 29, 2015; 12:07 PM ET
Five-day Weather Forecast for Ottawa, ON
Ottawa, ON Weather Forecast

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The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.

48 Hour Precipitation Forecast

Sun. Snow Day Potential