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Hourly
7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Waterloo, ON
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September
Average Temperature
High
21°
Feels 21
Low
10°
Feels 10
Average Precipitation
10 Days
Rain amount
72.1mm
Snow amount
0cm
Content continues below
Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
25°
9
25°
10
22°
11
22°
12
25°
13
23°
14
21°
15
22°
16
20°
17
20°
18
19°
19
18°
20
18°
21
17°
22
18°
23
24
25
26
27
28
29
30
Forecast
Tuesday, September 8, 2026
Day
25°
Feels 29
Wind
15 km/h S
Gust
24 km/h
Humidity
52%
P.O.P
20%
Night
17°
Feels 17
Wind
15 km/h S
Gust
25 km/h
Humidity
100%
P.O.P
30%
Historical Averages
Sep 8
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.