forecast
detailed forecast
| Extented weather forecast for Cornwall Ontario and the Seaway Issued by Environment Canada at 0500 ET Thu Nov 12 2026 |
| Today: A mix of sun and cloud. High plus 5. Uv index 2 or low. Tonight: Partly cloudy. Wind up to 15 km/h. Low minus 3. Wind chill minus 7 overnight. Friday: Cloudy. 30 percent chance of flurries changing to 30 percent chance of rain showers or flurries near noon. Wind up to 15 km/h. High plus 4. Wind chill minus 4 in the morning. Uv index 1 or low. Friday Night: Cloudy. Low minus 4. Saturday: Cloudy with 40 percent chance of showers. High plus 5. Saturday Night: Cloudy periods. Low minus 2. Sunday: Cloudy. High 6. Sunday Night: Cloudy periods. Low minus 4. Monday: A mix of sun and cloud. High plus 3. Monday Night: Clear. Low minus 3. Tuesday: Sunny. High plus 4. Tuesday Night: Clear. Low plus 1. Wednesday: Sunny. High 7. |
regional radar

■ Cornwall
Rain Snow Ice Mix














