DriveWindow route answer

How does weather change by season between Ottawa and Montreal?

Short drives between Ontario and Quebec can still change quickly in winter precipitation. The main seasonal conditions to compare along Highway 417 and Autoroute 40 are freezing rain, fog and low visibility along the corridor, and winter visibility changes. Check the full corridor close to departure rather than relying on one destination forecast.

Illustration for the Ottawa to Montreal drive, showing a highlighted route and weather markers

Route facts

Ottawa → Montreal

Distance
200 km
Typical drive
2 hours
Planning baseline
Late morning
Main weather risks
freezing rain · fog and low visibility along the corridor · winter visibility changes

Updated: US National Weather ServiceEnvironment and Climate Change Canada

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Seasonal planning

How conditions change through the year

Recurring seasonal pattern

Short drives between Ontario and Quebec can still change quickly in winter precipitation.

Conditions to watch
  • freezing rain
  • fog and low visibility along the corridor
  • winter visibility changes
Representative route pointsOttawa · Montreal

Short drives between Ontario and Quebec can still change quickly in winter precipitation.

Compare how freezing rain, fog and low visibility along the corridor, and winter visibility changes overlaps with the hours you expect to be on the road.

What to check before leaving

Short drives between Ontario and Quebec can still change quickly in winter precipitation. Key weather factors: freezing rain, fog and low visibility along the corridor, winter visibility changes.

  • freezing rain
  • fog and low visibility along the corridor
  • winter visibility changes

Sources and methodology

How this answer is produced

Website drive time and distance are static planning baselines. In the app, routing-provider travel time can account for traffic and helps time each weather segment; departure options are then compared by weather risk for your date.

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