🇨🇦 Weather in Waterloo
Map Overlays:
Hourly Forecast for Waterloo
22:00
23°
5%
23:00
22°
4%
00:00
21°
5%
01:00
21°
5%
02:00
21°
5%
03:00
21°
7%
04:00
21°
6%
05:00
20°
9%
06:00
19°
11%
07:00
20°
12%
08:00
20°
76%
09:00
21°
33%
10:00
23°
61%
11:00
24°
65%
12:00
25°
61%
13:00
26°
22%
14:00
26°
58%
15:00
25°
65%
16:00
24°
71%
17:00
22°
19%
18:00
21°
18%
19:00
20°
21%
20:00
20°
18%
21:00
18°
23%
14-Day Forecast for Waterloo
2026-07-08
Sunny
32° /
16°
2026-07-09
Sunny
26° /
18°
2026-07-10
Mist
25° /
16°
2026-07-11
Sunny
25° /
16°
2026-07-12
Sunny
25° /
14°
2026-07-13
Sunny
27° /
14°
2026-07-14
Sunny
29° /
19°
Additional Forecasts for Waterloo
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 223.0 μg/m³
O₃ (Ozone) 79.0 μg/m³
NO₂ (Nitrogen Dioxide) 11.7 μg/m³
SO₂ (Sulphur Dioxide) 1.0 μg/m³
PM2.5 (Fine particles) 4.5 μg/m³
PM10 (Coarse particles) 4.6 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Canada
Weather in Waterloo — FAQ
Answers refreshed each request based on current conditions in Waterloo.
What is the weather like right now in Waterloo?
Right now in Waterloo, Canada the temperature is 24.8°C (feels like 19.3°C), with sunny. Relative humidity is 63% and wind is 7.9 km/h.
What is today's high and low temperature in Waterloo?
Today's forecast high in Waterloo is 32.5°C and the overnight low is 15.5°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Waterloo today?
The chance of precipitation in Waterloo today is 5%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Waterloo differ from nearby cities?
Even short distances can change temperatures noticeably. Waterloo's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.