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Observed at: Region of Waterloo Int'l Airport 12:00 PM EDT Saturday 16 August 2025 Condition: Sunny Temperature: 29.3°C Pressure: 102.0 kPa Visibility: 15 km Humidity: 41 % Humidex: 33 Dewpoint: 14.6°C Wind: S 11 km/h Air Quality Health Index: 3
Clear early this evening then partly cloudy with 40 percent chance of showers. Risk of a thunderstorm. Wind becoming northwest 20 km/h before morning. Low 18. Forecast issued 11:00 AM EDT Saturday 16 August 2025
A mix of sun and cloud. 30 percent chance of showers in the morning and early in the afternoon with risk of a thunderstorm. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 26. Humidex 33. UV index 9 or very high. Forecast issued 11:00 AM EDT Saturday 16 August 2025
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Observed at: Region of Waterloo Int'l Airport 8:00 AM EDT Saturday 16 August 2025 Condition: Sunny Temperature: 16.9°C Pressure: 102.1 kPa Visibility: 11 km Humidity: 99 % Dewpoint: 16.7°C Wind: NW 4 km/h Air Quality Health Index: 2
Clear early this evening then partly cloudy with 40 percent chance of showers. Risk of a thunderstorm. Wind becoming northwest 20 km/h before morning. Low 18. Forecast issued 6:54 AM EDT Saturday 16 August 2025
A mix of sun and cloud. 30 percent chance of showers in the morning and early in the afternoon with risk of a thunderstorm. Clearing late in the afternoon. Wind becoming north 20 km/h late in the morning. High 26. Humidex 33. UV index 9 or very high. Forecast issued 6:54 AM EDT Saturday 16 August 2025
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Observed at: Region of Waterloo Int'l Airport 4:02 AM EDT Saturday 16 August 2025 Condition: Mist Temperature: 15.2°C Pressure: 102.1 kPa Visibility: 3 km Humidity: 99 % Dewpoint: 15.1°C Wind: NNE 4 km/h Air Quality Health Index: 2
We now have new location pages! To ensure you are retrieving the location closest to you please visit weather.gc.ca/canada_e.html for all our new locations!
Observed at: Region of Waterloo Int'l Airport 12:00 AM EDT Saturday 16 August 2025 Condition: Clear Temperature: 16.8°C Pressure: 102.2 kPa Visibility: 16 km Humidity: 96 % Dewpoint: 16.2°C Wind: calm km/h Air Quality Health Index: 3
We now have new location pages! To ensure you are retrieving the location closest to you please visit weather.gc.ca/canada_e.html for all our new locations!
We now have new location pages! To ensure you are retrieving the location closest to you please visit weather.gc.ca/canada_e.html for all our new locations!
Clear. Increasing cloudiness near midnight then 40 percent chance of showers overnight. Risk of a thunderstorm overnight. Wind becoming northwest 20 km/h before morning. Low 18. Forecast issued 3:30 PM EDT Friday 15 August 2025