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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.
Check the live forecast above for your exact location, then plan your day around the main story: a cold front sliding across Ontario will bring a sharp temperature drop and gusty winds this afternoon, making it feel several degrees cooler than the morning.
What should I expect for today’s weather in Ottawa and Sudbury?
For Ottawa, the morning starts with clouds and a chance of light drizzle before the front arrives around midday. Winds will shift to the northwest and pick up to 30–40 km/h, dropping temperatures from a mild start to near 10°C by evening. In Sudbury, the front arrives a couple of hours earlier, with a brief burst of rain and a more dramatic temperature fall—expect a high near 8°C but feeling like 3°C by late afternoon. If you’re checking the ottawa weather hourly or sudbury weather hourly, note that the wind chill becomes the main factor after lunch.
Will this weather last into the weekend?
No, the cold front is a quick mover. By Friday morning, high pressure builds in, giving Ottawa and Sudbury a mostly sunny day with seasonable highs near 14°C. The overnight low will dip to around 4°C, so a light jacket is still smart for early walks. If you’re looking at an ottawa weather 14 day or weather in ottawa 10 days, you’ll see a gradual warm-up next week with a return to more typical October temperatures. For now, the ottawa weather radar shows the rain band moving east fast; Sudbury should be dry by sunset.
What is the best time to go for a walk today?
If you’re in Ottawa, go before 11 a.m. while it’s still calm and dry. In Sudbury, the window is even tighter—before 10 a.m. After that, the wind and cooler air make it less comfortable.
Will I need an umbrella in Ottawa today?
Briefly, yes—the rain associated with the front will only last about 30 to 60 minutes around midday. After that, the clouds break up and the rest of the day is dry but increasingly windy.
Is this weather unusual for October in eastern Ontario?
Not really. October is a transition month, and these sharp cold fronts are common. The temperature swing of 8–10°C in a few hours is typical for this time of year, so dressing in layers is your best bet.
Sources
For a broader look at conditions across the country, visit our Canada weather hub. For more detail on the capital region, check Ottawa Weather. And if you’re driving north, Sudbury Weather has the local breakdown.