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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Perspective Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
As of the live forecast above, Ottawa’s hourly conditions show a mix of sun and cloud with temperatures near the seasonal average, though a sharp drop is expected overnight. This pattern, typical of early spring in the capital, keeps the Ottawa River corridor breezy into the evening.
What is the hourly breakdown for Ottawa today?
According to the live forecast above, Ottawa sees steady temperatures through the afternoon, with a brief chance of a light shower near the Ottawa River by late afternoon. Winds from the northwest pick up after 6 p.m., dropping the mercury into single digits by midnight. For those tracking weather in ottawa tomorrow, expect a cooler start with clearing skies.
How does this compare to the rest of the week?
Looking at the ottawa weather 7 days outlook, today’s hourly fluctuation is part of a broader pattern: a midweek low-pressure system brushes the region, bringing weather in ottawa 10 days back to seasonable highs near 10°C. The weather network ottawa 7 days forecast aligns with Environment Canada’s call for a dry weekend.
Why does the hourly forecast change so often in Ottawa?
Ottawa sits at the convergence of the Ottawa River and the Rideau Canal, creating local microclimates. Passing lake-effect bands from the Great Lakes can shift hourly conditions quickly, especially in spring and fall.
Will I need an umbrella for the evening commute?
Based on the live forecast above, the chance of rain is low before 8 p.m., but a passing sprinkle is possible near the river. A light jacket is recommended as winds pick up after sunset.
How accurate is the hourly data for the next 24 hours?
Environment and Climate Change Canada’s hourly model is most reliable within the first 12 hours. For the ottawa weather 14 day outlook, confidence drops beyond day 7 due to shifting continental air masses.
Sources
For broader coverage, visit the Canada weather hub or check the Ottawa Weather page for updates. Stay tuned for weather warnings if conditions shift. For ottawa news on local impacts, bookmark this page.