Summary
Observed at: St. Catharines / Niagara District Airport 7:00 AM EDT Tuesday 8 September 2026
Condition: Partly Cloudy
Temperature: 13.7°C
Pressure: 102.4 kPa
Visibility: 24 km
Humidity: 94 %
Dewpoint: 12.7°C
Wind: S 4 km/h
Air Quality Health Index: 1
Tuesday: Sunny. High 25.
Sunny. High 25. Humidex 29. UV index 6 or high. Forecast issued 5:00 AM EDT Tuesday 8 September 2026
Tuesday night: Increasing cloudiness. Low 20.
Clear. Increasing cloudiness late this evening. Low 20. Forecast issued 5:00 AM EDT Tuesday 8 September 2026
Wednesday: A few showers. High 28.
Cloudy. A few showers beginning near noon. Risk of a thunderstorm in the afternoon. Wind southwest 30 km/h gusting to 50. High 28. Humidex 36. UV index 4 or moderate. Forecast issued 5:00 AM EDT Tuesday 8 September 2026
Wednesday night: Chance of showers. Low 18. POP 40%
Cloudy with 40 percent chance of showers. Low 18. Forecast issued 5:00 AM EDT Tuesday 8 September 2026
Thursday: Chance of showers. High 23. POP 30%
A mix of sun and cloud with 30 percent chance of showers. High 23. Forecast issued 5:00 AM EDT Tuesday 8 September 2026
Thursday night: Clear. Low 13.
Clear. Low 13. Forecast issued 5:00 AM EDT Tuesday 8 September 2026
Friday: Sunny. High 22.
Sunny. High 22. Forecast issued 5:00 AM EDT Tuesday 8 September 2026
Friday night: Clear. Low 16.
Clear. Low 16. Forecast issued 5:00 AM EDT Tuesday 8 September 2026
Saturday: Sunny. High 23.
Sunny. High 23. Forecast issued 5:00 AM EDT Tuesday 8 September 2026
Saturday night: Cloudy periods. Low 17.
Cloudy periods. Low 17. Forecast issued 5:00 AM EDT Tuesday 8 September 2026
Sunday: A mix of sun and cloud. High 23.
A mix of sun and cloud. High 23. Forecast issued 5:00 AM EDT Tuesday 8 September 2026
Sunday night: Chance of showers. Low 17. POP 30%
Cloudy periods with 30 percent chance of showers. Low 17. Forecast issued 5:00 AM EDT Tuesday 8 September 2026
Monday: A mix of sun and cloud. High 21.
A mix of sun and cloud. High 21. Forecast issued 5:00 AM EDT Tuesday 8 September 2026
