Cornwall skaters at the Optimist Park Skatepark
forecast
detailed forecast
| Extented weather forecast for Cornwall Ontario and the Seaway Issued by Environment Canada at 1530 ET Thu Aug 6 2026 |
| Tonight: Partly cloudy. 40 percent chance of showers this evening with risk of a thunderstorm. Low 18. Friday: Mainly cloudy. High 29. Humidex 36. Uv index 8 or very high. Friday Night: Cloudy. 30 percent chance of showers overnight with risk of a thunderstorm. Low 19. Saturday: Cloudy with 60 percent chance of showers. High 27. Saturday Night: Cloudy with 60 percent chance of showers. Low 17. Sunday: Clearing. High 26. Sunday Night: Cloudy periods with 40 percent chance of showers. Low 16. Monday: A mix of sun and cloud with 40 percent chance of showers. High 26. Monday Night: Cloudy with 40 percent chance of showers. Low 16. Tuesday: Cloudy with 30 percent chance of showers. High 25. Tuesday Night: Cloudy periods. Low 16. Wednesday: Cloudy. High 25. |
regional radar
■ Cornwall
Rain Snow Ice Mix
air quality health index
weather alert
uv forecastExtreme11+
Very High8–10
High6–7
Moderate3–5
Low1–2
8 VERY HIGH
Sun protection recommended
1220 ET Thu Aug 6 2026
explore the seaway city
discover the counties of sdg
