S
M
T
W
T
F
S
30
70°
57°
31
72°
55°
1
72°
50°
2
66°
59°
3
77°
64°
4
66°
54°
5
70°
50°
6
79°
55°
7
72°
59°
8
63°
52°
9
65°
47°
10
65°
56°
11
71°
48°
12
70°
60°
13
72°
54°
14
71°
59°
15
72°
52°
16
66°
50°
17
67°
52°
18
70°
53°
19
71°
52°
20
68°
53°
21
69°
52°
22
67°
52°
23
68°
51°
24
67°
50°
25
64°
50°
26
62°
49°
27
65°
51°
28
64°
45°
29
59°
44°
30
59°
44°
1
60°
50°
2
62°
50°
3
63°
49°
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 59° to 72°, with overnight lows between 44° and 60°. The average high for September is 66° with an average low of 51°. 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.
