S
M
T
W
T
F
S
30
78°
58°
31
83°
59°
1
83°
59°
2
82°
58°
3
83°
52°
4
82°
50°
5
75°
51°
6
75°
57°
7
77°
57°
8
80°
56°
9
81°
55°
10
78°
56°
11
80°
55°
12
80°
55°
13
79°
56°
14
79°
56°
15
80°
55°
16
80°
49°
17
78°
54°
18
76°
50°
19
77°
48°
20
72°
46°
21
69°
43°
22
69°
51°
23
70°
48°
24
73°
44°
25
67°
43°
26
67°
43°
27
69°
47°
28
73°
49°
29
72°
46°
30
72°
45°
1
66°
48°
2
66°
40°
3
66°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Agawam
Agawam's September 2026 forecast shows daily high temperatures ranging from 66° to 83°, with overnight lows between 40° and 59°. The average high for September is 75° 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 Agawam. See also: October | November | December.
