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May 12th, 2026 :: 8:37 pm EDT   

Local Weather Report for
Waterloo
Ontario, Canada

 Waterloo Weather Forecast Summary  
 
Today
May 12th
Wednesday
May 13th
Thursday
May 14th
Friday
May 15th
Saturday
May 16th
Mix of Cloud and Sun Mix of rain and snow Mix of Cloud and Sun Mix of Sun and Cloud Mostly Sunny
12°C
11°C
4°C
10°C
4°C
15°C
3°C
23°C
9°C
 
 Waterloo Detailed Weather Forecast  
 
Tuesday, May 12th, 2026
Evening Temperature: 6°C
Cloudy with a chance of showers. Windy at times.
Wednesday, May 13th, 2026
Overnight Temperature: 8°C
Cloudy with a few showers. Windy at times.
Morning Temperature: 10°C
A mix of cloud and sun with showers likely. Windy.
Afternoon Temperature: 6°C
A mix of cloud and sun. Windy.
Evening Temperature: 4°C
A mix of cloudy and clear skies. Windy.
Thursday, May 14th, 2026
Overnight Temperature: 4°C
Cloudy with clear periods. Windy at times.
Morning Temperature: 5°C
A mix of cloud and sun. Windy.
Afternoon Temperature: 10°C
A mix of cloud and sun. Windy.
Evening Temperature: 8°C
Clear with cloudy periods. Windy at times.
Friday, May 15th, 2026
Overnight Temperature: 3°C
Mostly clear.
Morning Temperature: 10°C
Mostly sunny.
Afternoon Temperature: 14°C
Mostly cloudy. Windy at times.
Evening Temperature: 10°C
A mix of cloudy and clear skies. Windy at times.
Saturday, May 16th, 2026
Overnight Temperature: 10°C
A mix of cloudy and clear skies. Windy at times.
Morning Temperature: 16°C
Mostly sunny. Slight chance of a thunderstorm. Windy.
Afternoon Temperature: 23°C
Sunny. Slight chance of a thunderstorm. Windy.
Evening Temperature: 12°C
Clear. Windy at times.
Sunday, May 17th, 2026
Overnight Temperature: 7°C
Mostly clear.
Morning Temperature: 14°C
Sunny.
Afternoon Temperature: 21°C
Sunny with cloudy periods. Windy at times.
Evening Temperature: 14°C
Clear with cloudy periods.
Monday, May 18th, 2026
Overnight Temperature: 14°C
A mix of cloudy and clear skies.
Morning Temperature: 21°C
Sunny. Slight chance of a thunderstorm. Windy.
Afternoon Temperature: 26°C
Sunny with cloudy periods. Chance of a thunderstorm. Windy.
Evening Temperature: 21°C
Cloudy with a slight chance of showers. Windy.
Tuesday, May 19th, 2026
Overnight Temperature: 18°C
Cloudy with a chance of showers. Windy.
Morning Temperature: 14°C
Cloudy with a chance of showers.
Afternoon Temperature: 15°C
Cloudy with a few showers.
Evening Temperature: 13°C
Cloudy with a few showers. Windy at times.
Wednesday, May 20th, 2026
Overnight Temperature: 12°C
Cloudy with a chance of showers.
Morning Temperature: 13°C
Cloudy.
Afternoon Temperature: 13°C
A mix of cloud and sun. Windy.
Evening Temperature: 8°C
A mix of cloudy and clear skies. Windy.





 

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8:00 PM  7°C
light rain
 
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This WeatherCity Weather Forecast for Waterloo, Ontario, Canada is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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