forecast
detailed forecast
| Extented weather forecast for Cornwall Ontario and the Seaway Issued by Environment Canada at 1500 utc May 30 2026 |
| Today: A mix of sun and cloud. Wind northeast 20 km/h gusting to 40 becoming light this afternoon. High 19. Uv index 6 or high. Tonight: Partly cloudy. Low 8. Sunday: Mainly cloudy. 60 percent chance of showers in the afternoon. Wind becoming northwest 20 km/h gusting to 40 in the afternoon. High 20. Uv index 6 or high. Sunday Night: Cloudy with 30 percent chance of showers. Low 8. Monday: A mix of sun and cloud with 40 percent chance of showers. High 22. Monday Night: Cloudy periods with 30 percent chance of showers. Low 9. Tuesday: A mix of sun and cloud. High 22. Tuesday Night: Cloudy periods. Low 9. Wednesday: A mix of sun and cloud. High 23. Wednesday Night: Cloudy periods. Low 12. Thursday: A mix of sun and cloud. High 27. Thursday Night: Cloudy periods. Low 14. Friday: A mix of sun and cloud with 40 percent chance of showers. High 27. |
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