S
M
T
W
T
F
S
30
87°
51°
31
83°
51°
1
79°
52°
2
80°
57°
3
81°
51°
4
84°
58°
5
80°
58°
6
86°
52°
7
84°
50°
8
77°
49°
9
78°
49°
10
77°
55°
11
79°
48°
12
82°
48°
13
76°
47°
14
75°
53°
15
78°
54°
16
81°
45°
17
83°
44°
18
73°
44°
19
72°
45°
20
72°
45°
21
73°
46°
22
70°
46°
23
70°
47°
24
71°
48°
25
73°
47°
26
76°
50°
27
76°
47°
28
77°
41°
29
69°
41°
30
67°
47°
1
68°
49°
2
73°
48°
3
74°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sudbury
Sudbury's September 2026 forecast shows daily high temperatures ranging from 67° to 87°, with overnight lows between 41° and 58°. The average high for September is 77° 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 Sudbury. See also: October | November | December.
