S
M
T
W
T
F
S
30
87°
69°
31
92°
69°
1
95°
72°
2
95°
75°
3
98°
74°
4
99°
73°
5
90°
72°
6
85°
66°
7
85°
63°
8
85°
59°
9
86°
58°
10
94°
70°
11
93°
74°
12
90°
74°
13
88°
74°
14
88°
69°
15
81°
58°
16
84°
57°
17
89°
60°
18
92°
68°
19
85°
66°
20
89°
64°
21
88°
71°
22
85°
70°
23
71°
64°
24
67°
61°
25
69°
59°
26
69°
58°
27
77°
58°
28
77°
58°
29
78°
65°
30
83°
65°
1
87°
61°
2
89°
65°
3
72°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Suffolk
Suffolk's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Suffolk. See also: October | November | December.
