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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Toronto Post Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Expect a high of –4°C and a low of –12°C today, with intermittent flurries and gusty northwest winds up to 40 km/h, based on the live forecast above. Dress in layers and allow extra travel time for reduced visibility on untreated roads.
What are the key numbers for today’s Ottawa weather?
The live forecast above shows a daytime high near –4°C under mainly cloudy skies. Winds from the northwest at 20–30 km/h, gusting to 40 km/h, will make it feel closer to –10°C. Overnight, the mercury drops to –12°C with clearing skies and diminishing wind. The chance of precipitation sits at 60%, with snowfall accumulation of 2–4 centimetres possible.
What does the 7-day outlook look like?
The Ottawa weather page provides a full 7 day weather forecast ottawa, but based on current models, expect a warming trend by midweek. Thursday should see a high near 0°C under mixed sun and cloud, while Friday brings a risk of freezing drizzle. The weekend looks seasonably cold, with highs around –5°C and a chance of light snow. For a broader Canada-wide view, visit the Canada weather hub.
Frequently asked questions
How accurate is the 14 day weather forecast ottawa?
Extended forecasts beyond seven days have lower reliability. Environment and Climate Change Canada’s 14-day outlook provides trends rather than precise hourly predictions, so consider it a general guide for planning.
What is the weather in ottawa tomorrow?
Tomorrow’s weather in ottawa tomorrow calls for a high of –2°C with a mix of sun and cloud, and a low of –10°C overnight. Winds will be light, under 15 km/h. Check the Ottawa weather page for updates.
Is there a 30-day outlook available?
The ottawa weather 30 days outlook from Environment Canada is a probabilistic tool showing temperature and precipitation anomalies, not daily forecasts. It helps identify overall warm or cold stretches, not exact conditions.