forecast
detailed forecast
| Extented weather forecast for Cornwall Ontario and the Seaway Issued by Environment Canada at 1100 ET Tue Nov 3 2026 |
| Today: Showers. High 16. Uv index 1 or low. Tonight: Mainly cloudy. 40 percent chance of showers this evening. Low 10. Wednesday: Sunny. High 21. Uv index 3 or moderate. Wednesday Night: Cloudy periods with 30 percent chance of showers. Low 14. Thursday: Showers. High 19. Thursday Night: Cloudy periods with 40 percent chance of showers. Low 11. Friday: Cloudy. High 16. Friday Night: Cloudy with 60 percent chance of showers. Low 8. Saturday: Cloudy with 40 percent chance of showers. High 10. Saturday Night: Cloudy with 30 percent chance of showers. Low plus 2. Sunday: Cloudy. High 8. Sunday Night: Cloudy with 30 percent chance of showers. Low plus 2. Monday: Cloudy with 30 percent chance of showers. High 8. |
regional radar

■ Cornwall
Rain Snow Ice Mix













