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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 Ottawa’s current temperature, sky conditions, and wind. The capital region sees four distinct seasons: cold, snowy winters and warm, humid summers, with spring and fall offering mild transitions.
What does a typical Ottawa winter or summer look like?
Winter temperatures often drop below freezing from December to February, with January lows averaging near –14°C. Snowfall accumulates to about 235 centimetres annually, and ice storms are possible. Summers are warm and humid, with July highs near 26°C; occasional heat warnings occur when humidex values climb above 35°C. Rainfall is spread throughout the year, peaking in late spring and early summer.
How can you stay informed about Ottawa weather hour by hour?
For ottawa weather hourly details, check the live forecast above—it updates frequently. Pair this with ottawa weather radar from Environment and Climate Change Canada to track incoming precipitation. Short-term forecasts covering ottawa weather 7 days and ottawa weather tomorrow are also included in the live block. For longer planning, see our Weather 10 Days page, which offers a week‑and‑a‑half outlook.
How accurate are 14‑day and 30‑day forecasts for Ottawa?
Forecasts beyond 7–10 days have limited reliability. Use ottawa weather 14 day and ottawa weather 30 days as trend guides, not precise predictions. Check the live forecast above for day‑to‑day certainty.
Does Ottawa experience extreme weather?
Yes. Severe thunderstorms with hail and damaging winds occur in summer. Winter storms can bring heavy snow and freezing rain. Heat waves happen a few times each summer. Always monitor alerts from Environment Canada.
Where can I find the best local weather data?
The authoritative source is Environment and Climate Change Canada (weather.gc.ca). The Weather Network also provides user‑friendly radar and hourly details. For health‑related heat or cold warnings, refer to Health Canada.
Sources
For a broader look at Canadian conditions, visit our Canada weather hub. If you’re comparing climates, check Toronto Weather as well. All temperatures on Civic Maple are reported in ottawa weather in celsius.