forecast
detailed forecast
| Extented weather forecast for Cornwall Ontario and the Seaway Issued by Environment Canada at 1100 ET Mon Jul 6 2026 |
| Today: Sunny. Becoming a mix of sun and cloud this afternoon. Wind becoming northeast 30 km/h this afternoon. High 29. Humidex 35. Uv index 8 or very high. Tonight: Clear. Wind northeast 30 km/h becoming light late this evening. Low 14. Tuesday: Mainly sunny. High 28. Humidex 33. Uv index 8 or very high. Tuesday Night: Clear. Low 17. Wednesday: A mix of sun and cloud with 30 percent chance of showers. High 29. Wednesday Night: Clear. Low 19. Thursday: A mix of sun and cloud with 40 percent chance of showers. High 28. Thursday Night: Cloudy with 40 percent chance of showers. Low 18. Friday: A mix of sun and cloud with 30 percent chance of showers. High 26. Friday Night: Clear. Low 16. Saturday: Sunny. High 26. Saturday Night: Clear. Low 16. Sunday: Increasing cloudiness. High 26. |
regional radar

■ Cornwall
Rain Snow Ice Mix














