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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Westport, ON
Exceptional El Niño dominates this fall
Content continues below
September
Average Temperature
High
21°
Feels 22
Low
11°
Feels 10
Average Precipitation
10 Days
Rain amount
68.4mm
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
9
10
11
12
13
14
15
16
17
23°
18
19°
19
17°
20
19°
21
15°
22
16°
23
18°
24
18°
25
19°
26
18°
27
18°
28
18°
29
18°
30
18°
Forecast
Thursday, September 17, 2026
Day
23°
Feels 26
Wind
8 km/h N
Gust
12 km/h
Humidity
60%
P.O.P
40%
Rain
<1 mm
Night
13°
Feels 12
Wind
10 km/h NW
Gust
15 km/h
Humidity
88%
P.O.P
20%
Historical Averages
Sep 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.