S
M
T
W
T
F
S
30
77°
55°
31
76°
54°
1
76°
55°
2
77°
58°
3
76°
57°
4
77°
58°
5
76°
60°
6
78°
61°
7
83°
61°
8
82°
60°
9
80°
59°
10
75°
59°
11
80°
58°
12
77°
59°
13
77°
58°
14
72°
57°
15
71°
56°
16
71°
56°
17
72°
55°
18
70°
56°
19
72°
55°
20
70°
54°
21
80°
54°
22
80°
49°
23
76°
44°
24
69°
45°
25
68°
52°
26
71°
51°
27
71°
53°
28
76°
51°
29
77°
49°
30
75°
50°
1
73°
51°
2
74°
50°
3
75°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Hanscom Afb
Hanscom Afb's September 2026 forecast shows daily high temperatures ranging from 68° to 83°, with overnight lows between 44° and 61°. The average high for September is 75° with an average low of 54°. 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 Hanscom Afb. See also: October | November | December.