S
M
T
W
T
F
S
31
73°
43°
1
78°
49°
2
80°
51°
3
79°
49°
4
67°
49°
5
73°
48°
6
67°
51°
7
67°
44°
8
68°
41°
9
73°
44°
10
79°
48°
11
78°
50°
12
79°
50°
13
79°
54°
14
82°
51°
15
80°
54°
16
83°
53°
17
83°
50°
18
86°
50°
19
77°
55°
20
74°
52°
21
81°
54°
22
79°
62°
23
78°
62°
24
72°
63°
25
72°
56°
26
77°
57°
27
80°
54°
28
77°
52°
29
80°
50°
30
79°
49°
1
70°
47°
2
74°
45°
3
81°
45°
4
83°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Exeter
Exeter's September 2025 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 Exeter. See also: October | November | December.
