forecast
detailed forecast
| Extented weather forecast for Cornwall Ontario and the Seaway Issued by Environment Canada at 1500 utc Jun 14 2026 |
| Today: Showers with risk of a thunderstorm. Local amount 20 to 30 mm. Wind west 20 km/h gusting to 40. High 22. Humidex 27. Uv index 3 or moderate. Tonight: Showers ending near midnight then clearing. Risk of a thunderstorm this evening. Wind becoming west 20 km/h before morning. Low 14. Monday: A mix of sun and cloud. Wind west 30 km/h. High 19. Uv index 7 or high. Monday Night: Cloudy periods with 30 percent chance of showers. Low 11. Tuesday: Sunny. High 23. Tuesday Night: Clear. Low 13. Wednesday: A mix of sun and cloud with 30 percent chance of showers. High 24. Wednesday Night: Cloudy with 40 percent chance of showers. Low 14. Thursday: Showers. High 21. Thursday Night: Cloudy with 40 percent chance of showers. Low 16. Friday: Cloudy with 40 percent chance of showers. High 21. Friday Night: Cloudy with 40 percent chance of showers. Low 14. Saturday: Cloudy with 30 percent chance of showers. High 22. |
regional radar

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