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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Edition Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Tomorrow in Ottawa, the live forecast above shows a mix of sun and cloud with a high near 26°C, a low around 15°C, and a slight chance of a late-afternoon shower, making it a typical July day in the capital.
What is the weather network Ottawa forecast for tomorrow?
The weather network Ottawa outlook for tomorrow calls for a weak cold front sliding through the Ottawa Valley after lunch. That front could trigger a brief thundershower in the evening, so if you’re heading to a patio in ByWard Market or down by the Rideau Canal, keep an eye on the sky after 4 p.m.
Will the 14-day outlook show a pattern change?
Looking at the weather tomorrow Ottawa hourly details in the live forecast, the morning will start mostly sunny, with cloud building around noon. The weather in Ottawa 10 days trend suggests humidity will ease by midweek, but tomorrow remains warm and muggy. For a broader look, check our Ottawa Weather page.
Will it rain tomorrow in Ottawa?
Yes, there is a 40% chance of a brief shower or thundershower in the late afternoon and early evening, but most of the day will remain dry. The live forecast above gives the best timing detail.
What is the wind speed for tomorrow?
Southwest winds of 15 to 20 km/h in the morning, becoming light in the afternoon. Gusts may reach 30 km/h near any storms, so secure loose items on your balcony.
How does tomorrow compare to the 14-day trend?
Tomorrow is slightly cooler than the ottawa weather 14 day average high of 27°C, and the humidity will drop the following day. Check the Weather Warning page if conditions change.