The Weather Network
Weather
Maps
News
Video
|
Welcome
Monthly
⋮
Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Plympton-Wyoming, ON
Your 2026 Fall Forecast is here!
Content continues below
September
Average Temperature
High
22°
Feels 23
Low
12°
Feels 11
Average Precipitation
9 Days
Rain amount
37.7mm
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
24°
12
25°
13
23°
14
20°
15
23°
16
22°
17
20°
18
18°
19
17°
20
18°
21
19°
22
19°
23
20°
24
20°
25
20°
26
27
28
29
30
Forecast
Friday, September 11, 2026
Day
24°
Feels 26
Wind
12 km/h E
Gust
18 km/h
Humidity
47%
P.O.P
10%
Night
16°
Feels 15
Wind
16 km/h SE
Gust
24 km/h
Humidity
83%
P.O.P
10%
Historical Averages
Sep 11
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.