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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the BuzzLayer Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Ottawa is seeing a mix of sun and cloud this morning, with the live forecast above indicating a chance of afternoon showers. Temperatures are near the seasonal average, making for a typical late-summer day in the capital region.
What is the weather like in Ottawa today?
The live forecast above shows partly cloudy skies through the morning, with clouds thickening by early afternoon. A slight chance of a brief shower exists, mainly west of the downtown core. Humidity will be moderate, and the breeze will stay light from the southwest. For those checking weather in Ottawa tomorrow, similar conditions are expected, though the shower risk may linger into the evening.
How does this week compare to the seasonal trend?
Ottawa’s weather this week aligns closely with the 30-year average for late August. Daytime highs will hold near the seasonal mark, while overnight lows will dip into the comfortable teens. The live forecast above provides the most current outlook for the next few days, including the weather in Ottawa 10 days and the ottawa weather 14 day trend. No major storm systems are on the horizon, but a weak cold front could bring a slight cooldown by midweek.
Will it rain in Ottawa today?
The live forecast above shows a low chance of rain, mainly during the afternoon. Any showers will be brief and isolated. For ottawa weather hourly updates, the live forecast is your best source.
What is the UV index expected to be?
UV index will reach moderate levels around midday. Sun protection is advised if you plan to be outdoors for more than 20 minutes. Check Health Canada’s UV index for real-time readings.
How long will this warm spell last?
The current pattern should hold through the weekend, with daytime highs near seasonal norms. For ottawa weather 30 days outlook, longer-range models suggest a gradual transition to cooler autumn conditions by mid-September.
Sources
For more local conditions, visit the Ottawa weather page or the Canada weather hub. Stay updated with ottawa news and alerts through our weather warning section.