forecast
detailed forecast
| Extented weather forecast for Cornwall Ontario and the Seaway Issued by Environment Canada at 1500 utc May 28 2026 |
| Today: A mix of sun and cloud. 30 percent chance of showers late this afternoon. Wind northwest 20 km/h. High 20. Uv index 7 or high. Tonight: Partly cloudy. 30 percent chance of showers early this evening. Wind northwest 20 km/h becoming light this evening. Low 10. Friday: Mainly cloudy. A few showers beginning in the afternoon. Wind becoming southwest 30 km/h gusting to 50 in the morning then northwest 40 gusting to 60 in the afternoon. High 18. Uv index 6 or high. Friday Night: Cloudy with 60 percent chance of showers. Low 10. Saturday: Clearing. High 19. Saturday Night: Clear. Low 9. Sunday: Cloudy with 60 percent chance of showers. High 19. Sunday Night: Cloudy periods with 30 percent chance of showers. Low 9. Monday: A mix of sun and cloud with 30 percent chance of showers. High 20. Monday Night: Cloudy periods with 30 percent chance of showers. Low 10. Tuesday: Cloudy. High 20. Tuesday Night: Cloudy periods. Low 10. Wednesday: A mix of sun and cloud. High 21. |
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