S
M
T
W
T
F
S
30
70°
62°
31
79°
65°
1
84°
68°
2
83°
67°
3
81°
60°
4
80°
55°
5
76°
53°
6
74°
59°
7
75°
56°
8
71°
55°
9
72°
54°
10
74°
55°
11
72°
53°
12
71°
52°
13
68°
53°
14
70°
52°
15
71°
58°
16
73°
57°
17
73°
54°
18
66°
51°
19
69°
56°
20
73°
58°
21
73°
58°
22
74°
57°
23
74°
56°
24
72°
55°
25
71°
55°
26
71°
54°
27
72°
55°
28
72°
53°
29
70°
52°
30
66°
51°
1
67°
52°
2
69°
53°
3
70°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Tillsonburg
Tillsonburg's September 2026 forecast shows daily high temperatures ranging from 66° to 84°, with overnight lows between 51° and 68°. The average high for September is 73° with an average low of 55°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Tillsonburg. See also: October | November | December.
