forecast
detailed forecast
| Extented weather forecast for Cornwall Ontario and the Seaway Issued by Environment Canada at 1530 ET Sat Nov 14 2026 |
| Tonight: Cloudy. 60 percent chance of rain showers or flurries early this evening. Wind northwest 20 km/h becoming light this evening. Low zero. Sunday: Mainly cloudy. Wind becoming northwest 20 km/h in the morning. High 6. Uv index 1 or low. Sunday Night: Overcast. Wind up to 15 km/h. Low minus 1. Wind chill minus 5 overnight. Monday: Cloudy. High plus 5. Monday Night: Clear. Low plus 2. Tuesday: Sunny. High 10. Tuesday Night: Clear. Low plus 4. Wednesday: Sunny. High 11. Wednesday Night: Clear. Low plus 2. Thursday: A mix of sun and cloud. High 9. Thursday Night: Cloudy periods. Low plus 5. Friday: A mix of sun and cloud. High 8. |
regional radar

■ Cornwall
Rain Snow Ice Mix














