Weather Underground: Ottawa, Canada Forecast - Current conditions and 3 day forecast. CANOE Weather: Ottawa, ON - Ottawa, ON Weather Map Forecast. Aviation Weather - Links to appropriate weather reports for pilots in the Ottawa area. Canadian Content: Ottawa - Current conditions and 5-day forecast for Ottawa. Ottawa, Canada Forecast by Intellicast.com - Current conditions and ten day forecast. Environment Canada Weather: Ottawa - Current conditions and forecast. Ottawa Weather - CBC Ottawa - Current conditions, forecast and almanac. Ottawa Weather - The Weather Network - Current conditions, short-term and long-term forecasts. Ottawa Weather - Canada.com - Current conditions, almanac, short-term and long-term forecasts.