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| Extented weather forecast for Cornwall Ontario and the Seaway Issued by Environment Canada at 1100 ET Sat Nov 7 2026 |
| Today: Cloudy with 40 percent chance of showers. Wind northeast 20 km/h becoming light late this afternoon. High 11. Uv index 2 or low. Tonight: Overcast. Low plus 5. Sunday: Cloudy. Becoming a mix of sun and cloud late in the morning. Wind becoming southwest 20 km/h gusting to 40 in the morning. High 10. Uv index 2 or low. Sunday Night: Cloudy with 40 percent chance of showers. Low plus 3. Monday: A mix of sun and cloud with 30 percent chance of showers. High 7. Monday Night: Cloudy periods. Low plus 3. Tuesday: A mix of sun and cloud with 40 percent chance of showers. High 10. Tuesday Night: Cloudy periods with 30 percent chance of showers. Low plus 3. Wednesday: A mix of sun and cloud with 30 percent chance of showers. High 7. Wednesday Night: Cloudy periods. Low minus 2. Thursday: A mix of sun and cloud. High plus 4. Thursday Night: Cloudy periods. Low minus 3. Friday: A mix of sun and cloud. High plus 3. |
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