Live Weather & Forecast
Weather in Waterloo
Ontario, Canada · Real-time conditions & 3-day outlook
4°C
Feels like -1°C
40°F / Feels 31°F
Patchy rain nearby
Waterloo, Ontario
🌙 Nighttime
Updated: 2026-04-25 02:30
Humidity
81%
Wind
28.8 km/h E
Wind Gust
41.8 km/h
Pressure
1010 mb
Visibility
9 km
UV Index
0
(Low)
Precipitation
0.26 mm
Cloud Cover
0%
Dew Point
0.8°C
Wind Degree
91°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
171.9 μg/m³
NO₂
6.3 μg/m³
O₃
79 μg/m³
SO₂
3.4 μg/m³
PM 2.5
5.2 μg/m³
PM 10
5.5 μg/m³
Today's Hourly Forecast
24-hour breakdown for Waterloo, Ontario
12 AM
5°
Patchy rain nearby
1 AM
5°
Patchy rain nearby
2 AM
4°
Patchy rain nearby
3 AM
5°
Patchy rain nearby
4 AM
5°
Patchy rain nearby
5 AM
5°
Patchy rain nearby
6 AM
5°
Light drizzle
7 AM
5°
Light drizzle
8 AM
5°
Moderate rain
9 AM
5°
Light drizzle
10 AM
5°
Overcast
11 AM
5°
Patchy rain nearby
12 PM
4°
Overcast
1 PM
4°
Patchy rain nearby
2 PM
4°
Overcast
3 PM
5°
Overcast
4 PM
6°
Overcast
5 PM
7°
Overcast
6 PM
7°
Cloudy
7 PM
6°
Partly Cloudy
8 PM
5°
Partly Cloudy
9 PM
5°
Clear
10 PM
4°
Clear
11 PM
3°
Clear
3-Day Forecast
Daily overview for Waterloo, Ontario
Today
Moderate rain
8°
/
3°
🌧️ 86% chance of rain
💧 Avg. humidity: 84%
💨 Max wind: 28.8 km/h
🌧️ Total precip: 6.3 mm
☀️ UV Index: 3.4
🌅 Sunrise: 06:23 AM
🌇 Sunset: 08:17 PM
🌙 Waxing Gibbous
🌑 Moon: 60% lit
Sun, Apr 26
Partly Cloudy
14°
/
3°
🌧️ 0% chance of rain
💧 Avg. humidity: 74%
💨 Max wind: 17.3 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 6.3
🌅 Sunrise: 06:22 AM
🌇 Sunset: 08:18 PM
🌙 Waxing Gibbous
🌑 Moon: 70% lit
Mon, Apr 27
Sunny
17°
/
4°
🌧️ 0% chance of rain
💧 Avg. humidity: 73%
💨 Max wind: 28.1 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 6.1
🌅 Sunrise: 06:20 AM
🌇 Sunset: 08:19 PM
🌙 Waxing Gibbous
🌑 Moon: 79% lit
Best Time to Visit Waterloo
Plan your trip to Waterloo, Canada around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Waterloo?
Current conditions in Waterloo: Patchy rain nearby, temperature 4°C, humidity 81%.
What is the best time to visit Waterloo?
The best time to visit Waterloo is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Waterloo?
Waterloo is located at approximately 43.5° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Waterloo?
The wettest period in Waterloo is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Waterloo?
For visits to Waterloo during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What are the public holidays in Waterloo in 2026?
View the 2026 public holidays for Waterloo on our Holidays page.
What are the GPS coordinates used for the weather forecast in Waterloo?
The weather forecast for Waterloo uses coordinates 43.4653, -80.5223.
What is the current temperature outside in Waterloo?
The current outdoor temperature in Waterloo is 4°C (39°F) with patchy rain nearby.
What is the hourly weather forecast for Waterloo today?
Today's hour-by-hour weather breakdown for Waterloo is shown in the Hourly Forecast section above, including temperature, rain chance, and conditions for each hour of the day.
What is the weather in Waterloo tomorrow hour by hour?
Tomorrow's forecast for Waterloo shows a high of 14°C and a low of 3°C. See the 3-Day Forecast section above for a full hourly breakdown.
What is the chance of rain today in Waterloo?
There is a 86% chance of rain in Waterloo today. Check the hourly forecast above for a time-by-time breakdown of when rain is most likely.
Is it going to rain today in Waterloo?
Yes, there is a 86% chance of rain in Waterloo today — consider carrying an umbrella. Check the hourly forecast above for the most likely rain windows.