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Tecumseh, ON
Your 2026 Fall Forecast is here!
Content continues below
September
Average Temperature
High
24°
Feels 24
Low
14°
Feels 14
Average Precipitation
10 Days
Rain amount
66.8mm
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
26°
10
25°
11
24°
12
27°
13
26°
14
26°
15
29°
16
23°
17
24°
18
23°
19
21°
20
19°
21
19°
22
19°
23
20°
24
25
26
27
28
29
30
Forecast
Wednesday, September 9, 2026
Day
26°
Feels 35
Wind
34 km/h SW
Gust
51 km/h
Humidity
74%
P.O.P
70%
Rain
1-3 mm
Night
19°
Feels 20
Wind
25 km/h W
Gust
38 km/h
Humidity
94%
P.O.P
30%
Historical Averages
Sep 9
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.