Ottawa weather

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

The weather guide for Ottawa, Ontario shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

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Metric (°C / mm)  |  Imperial (°F / inches)

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Discover more about Canada

Compare Ottawa weather with the USA

Below the Ottawa weather chart shows average maximum daytime temperature for Ottawa, Ontario, Canada and the USA (Washington).

Maximum daytime temperature (°C)

Ottawa, Ontario, Canada
USA (Washington)
Jan
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Sep
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Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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Where's warm in Ontario today?

Below are the temperatures expected today at popular destinations in Ontario. Select a destination to compare today's forecast with average weather conditions.

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