S
M
T
W
T
F
S
30
77°
60°
31
79°
58°
1
76°
58°
2
76°
57°
3
77°
63°
4
75°
59°
5
79°
56°
6
75°
55°
7
74°
56°
8
75°
58°
9
75°
59°
10
78°
61°
11
78°
59°
12
71°
59°
13
72°
62°
14
74°
55°
15
71°
54°
16
Hist. Avg.
74°
56°
17
Hist. Avg.
74°
56°
18
Hist. Avg.
74°
56°
19
Hist. Avg.
73°
55°
20
Hist. Avg.
73°
55°
21
Hist. Avg.
72°
54°
22
Hist. Avg.
72°
54°
23
Hist. Avg.
71°
54°
24
Hist. Avg.
71°
53°
25
Hist. Avg.
70°
53°
26
Hist. Avg.
70°
52°
27
Hist. Avg.
70°
52°
28
Hist. Avg.
69°
51°
29
Hist. Avg.
69°
51°
30
Hist. Avg.
68°
50°
1
Hist. Avg.
68°
50°
2
Hist. Avg.
67°
50°
3
Hist. Avg.
67°
49°
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 71° to 79°, with overnight lows between 54° and 63°. The average high for September is 75° with an average low of 58°. 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.