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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the BuzzLayer 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 today’s conditions before heading out. Ottawa’s weather is shaped by its position along the Ottawa River and the sheltering Gatineau Hills, giving the capital a humid continental climate with sharp seasonal swings.
What is the weather in Ottawa right now?
The live forecast above shows current temperature, wind, and precipitation for Ottawa. Because the city sits in a river valley, overnight lows can drop several degrees below surrounding areas, and morning fog is common near the water. Environment Canada updates these readings hourly, so the weather ottawa snapshot you see is the most reliable source for immediate conditions.
What does the 7‑day outlook look like?
The live forecast also includes an ottawa weather 7 days view, with highs, lows, and chance of rain or snow. For a longer view, the weather in ottawa 10 days and ottawa weather 30 days trend can help you plan ahead. Environment Canada’s ottawa weather environment canada 14 day forecast is particularly useful for tracking major shifts, such as Arctic air intrusions or lake‑effect snow from the Ottawa River.
When does Ottawa typically get its first snowfall?
Ottawa’s first measurable snow usually falls in early November, though flurries can appear in late October. The river valley can trap cold air, making the city one of the first in southern Ontario to see accumulating snow.
How accurate are Environment Canada’s hourly forecasts?
For the next 12‑24 hours, the ottawa weather environment canada hourly product is highly reliable, often within 1–2 °C. Beyond 48 hours, accuracy drops, but the 14‑day outlook gives a useful trend, especially for big weather events.
What is the best time to visit Ottawa for mild weather?
Late May to early June and September offer pleasant highs around 20–25 °C, low humidity, and fewer thunderstorms. July and August can be hot and humid, while winter visitors should prepare for deep cold and icy sidewalks.
Sources
For more details, visit our Ottawa Weather page, check current weather warnings, or explore Canada’s weather hub for conditions across the country.