S
M
T
W
T
F
S
30
74°
58°
31
70°
56°
1
78°
64°
2
75°
59°
3
75°
53°
4
75°
51°
5
74°
52°
6
74°
49°
7
80°
52°
8
73°
60°
9
75°
58°
10
66°
44°
11
73°
39°
12
74°
52°
13
66°
44°
14
62°
41°
15
65°
47°
16
69°
49°
17
72°
44°
18
65°
42°
19
62°
44°
20
63°
41°
21
61°
44°
22
62°
46°
23
65°
48°
24
66°
46°
25
63°
47°
26
62°
47°
27
62°
45°
28
59°
42°
29
62°
47°
30
62°
48°
1
61°
48°
2
63°
46°
3
61°
47°
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 59° to 72°, with overnight lows between 41° and 49°. The average high for September is 63° with an average low of 46°. 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.
