S
M
T
W
T
F
S
30
84°
60°
31
82°
58°
1
84°
55°
2
77°
53°
3
76°
54°
4
76°
53°
5
77°
51°
6
78°
57°
7
81°
57°
8
76°
56°
9
75°
56°
10
79°
57°
11
82°
56°
12
82°
56°
13
81°
57°
14
82°
46°
15
76°
46°
16
72°
47°
17
74°
46°
18
72°
44°
19
71°
46°
20
72°
49°
21
79°
51°
22
78°
51°
23
79°
44°
24
79°
42°
25
72°
42°
26
71°
45°
27
75°
49°
28
76°
49°
29
77°
43°
30
75°
42°
1
69°
42°
2
69°
42°
3
73°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in North Sudbury
North Sudbury's September 2026 forecast shows daily high temperatures ranging from 69° to 84°, with overnight lows between 42° and 60°. The average high for September is 77° with an average low of 50°. 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 North Sudbury. See also: October | November | December.