Home › Weather › Weather Clarence-rockland
Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Civic Maple Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above for Clarence-Rockland’s current conditions and plan your day accordingly. This Ottawa River community experiences a humid continental climate with four distinct seasons, so dress for the season and check road conditions before travelling.
What is the typical weather pattern in Clarence-Rockland?
Winters are cold, snowy, and long, with average highs around -6°C and lows near -15°C in January. Summers are warm and humid, with July highs averaging 26°C and occasional heat warnings. Spring and fall are transitional, bringing rain and variable temperatures. Snowfall totals about 200 cm annually, and precipitation is spread fairly evenly through the year.
When is the best time to visit Clarence-Rockland?
Late June to early September offers the warmest weather for outdoor activities like hiking and boating. For winter sports, January and February provide reliable snow cover, though temperatures can drop below -20°C.
Does Clarence-Rockland get extreme weather?
Yes. Severe thunderstorms with heavy rain, hail, and strong winds occur in summer. Winter storms can bring blizzard conditions and freezing rain. Environment Canada issues alerts, so check the live forecast above.
How does the weather affect driving from Ottawa to Clarence-Rockland?
Winter conditions can make Highway 17 icy or snow-covered. Fog and heavy rain reduce visibility in other seasons. Always check Ottawa weather before driving eastbound.
Sources
For a broader look at conditions across the country, see our Canada weather hub or the 10-day forecast page.