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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the True North Brief Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Highs near 24°C with a 40% chance of afternoon showers; the live forecast above shows a mix of sun and cloud. Conditions remain seasonable for late June, though a slow-moving low pressure system keeps unsettled air in play through the evening.
What is the 7-day outlook for Ottawa?
Daytime highs range from 22–26°C, with nighttime lows dipping to 12–16°C. That means a warm, moderately humid week ahead—no extreme heat or cold, but a few scattered showers on Tuesday and Thursday.
How should you prepare for today’s weather?
UV index sits around 7—high enough to require sunscreen if you’re outside more than 20 minutes. Winds are light from the southwest, 10–15 km/h, so no wind chill or gust concerns. Keep a light jacket handy for the evening drop to 14°C.
When will the next rain arrive?
Showers are most likely between 2 p.m. and 7 p.m. today, as shown in the live forecast above. Coverage is scattered, so some neighbourhoods may stay dry. Expect similar chances again on Tuesday afternoon.
What is the best time for outdoor activities?
Mid-morning to early afternoon, before the highest shower risk and while UV is still moderate. After 3 p.m., cloud cover thickens and the chance of a brief downpour increases for the remainder of the evening.
How does today compare to the seasonal average?
Today’s high of 24°C is within 1°C of the late‑June normal for Ottawa. Overnight lows near 14°C are also typical, so no unusual warmth or cold is expected for the weather in Ottawa today.
For the broader picture across the province, visit our Canada weather hub. To compare conditions in other cities, see Toronto Weather or the Ottawa Weather main page. If severe storms develop, check Weather Warning for alerts.