S
M
T
W
T
F
S
30
85°
66°
31
90°
65°
1
88°
62°
2
86°
65°
3
90°
67°
4
84°
65°
5
84°
64°
6
81°
64°
7
83°
67°
8
83°
65°
9
80°
56°
10
80°
51°
11
87°
62°
12
74°
51°
13
70°
46°
14
60°
43°
15
71°
49°
16
74°
44°
17
70°
55°
18
61°
57°
19
61°
56°
20
69°
50°
21
60°
45°
22
63°
44°
23
64°
50°
24
64°
52°
25
68°
52°
26
70°
53°
27
67°
52°
28
70°
50°
29
70°
49°
30
68°
49°
1
70°
51°
2
65°
44°
3
62°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Andover
Andover's September 2026 forecast shows daily high temperatures ranging from 60° to 70°, with overnight lows between 44° and 53°. The average high for September is 66° with an average low of 49°. 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 Andover. See also: October | November | December.
