S
M
T
W
T
F
S
30
74°
52°
31
78°
54°
1
70°
57°
2
68°
59°
3
70°
58°
4
77°
57°
5
68°
49°
6
72°
47°
7
73°
53°
8
71°
52°
9
71°
55°
10
74°
56°
11
69°
49°
12
69°
51°
13
68°
53°
14
64°
51°
15
65°
45°
16
68°
51°
17
71°
49°
18
64°
44°
19
69°
49°
20
70°
49°
21
70°
48°
22
69°
49°
23
69°
47°
24
64°
44°
25
66°
47°
26
68°
48°
27
67°
48°
28
60°
45°
29
57°
42°
30
61°
42°
1
57°
38°
2
56°
38°
3
57°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Thetford Hill
Thetford Hill's September 2026 forecast shows daily high temperatures ranging from 56° to 77°, with overnight lows between 38° and 59°. The average high for September is 67° with an average low of 49°. 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 Thetford Hill. See also: October | November | December.
