S
M
T
W
T
F
S
30
75°
56°
31
79°
58°
1
83°
57°
2
83°
55°
3
78°
49°
4
81°
55°
5
81°
50°
6
80°
48°
7
73°
52°
8
71°
54°
9
73°
51°
10
72°
46°
11
71°
54°
12
78°
46°
13
75°
50°
14
76°
48°
15
70°
53°
16
77°
50°
17
Hist. Avg.
73°
49°
18
Hist. Avg.
72°
48°
19
Hist. Avg.
72°
48°
20
Hist. Avg.
71°
47°
21
Hist. Avg.
71°
47°
22
Hist. Avg.
70°
46°
23
Hist. Avg.
70°
46°
24
Hist. Avg.
70°
46°
25
Hist. Avg.
69°
45°
26
Hist. Avg.
69°
45°
27
Hist. Avg.
68°
44°
28
Hist. Avg.
68°
44°
29
Hist. Avg.
67°
44°
30
Hist. Avg.
67°
43°
1
Hist. Avg.
66°
43°
2
Hist. Avg.
66°
42°
3
Hist. Avg.
65°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Sudbury
Sudbury's September 2026 forecast shows daily high temperatures ranging from 70° to 83°, with overnight lows between 46° and 58°. The average high for September is 76° with an average low of 52°. 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.
