S
M
T
W
T
F
S
30
73°
54°
31
79°
56°
1
80°
54°
2
78°
53°
3
79°
47°
4
76°
46°
5
79°
52°
6
77°
51°
7
Hist. Avg.
73°
47°
8
Hist. Avg.
73°
46°
9
Hist. Avg.
73°
46°
10
Hist. Avg.
72°
46°
11
Hist. Avg.
72°
45°
12
Hist. Avg.
72°
45°
13
Hist. Avg.
71°
45°
14
Hist. Avg.
71°
44°
15
Hist. Avg.
70°
44°
16
Hist. Avg.
70°
44°
17
Hist. Avg.
70°
43°
18
Hist. Avg.
69°
43°
19
Hist. Avg.
69°
42°
20
Hist. Avg.
68°
42°
21
Hist. Avg.
68°
42°
22
Hist. Avg.
68°
41°
23
Hist. Avg.
67°
41°
24
Hist. Avg.
67°
40°
25
Hist. Avg.
66°
40°
26
Hist. Avg.
66°
40°
27
Hist. Avg.
66°
39°
28
Hist. Avg.
65°
39°
29
Hist. Avg.
65°
38°
30
Hist. Avg.
64°
38°
1
Hist. Avg.
64°
38°
2
Hist. Avg.
64°
37°
3
Hist. Avg.
63°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Andover
Andover's September 2026 forecast shows daily high temperatures ranging from 73° to 80°, with overnight lows between 46° and 56°. The average high for September is 78° with an average low of 52°. 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.