S
M
T
W
T
F
S
30
92°
75°
31
90°
75°
1
91°
75°
2
93°
73°
3
93°
73°
4
88°
73°
5
89°
72°
6
92°
72°
7
93°
73°
8
94°
72°
9
90°
73°
10
94°
72°
11
93°
72°
12
93°
71°
13
92°
70°
14
89°
71°
15
88°
68°
16
84°
70°
17
85°
69°
18
84°
70°
19
86°
69°
20
86°
70°
21
88°
70°
22
89°
69°
23
89°
69°
24
84°
68°
25
83°
68°
26
82°
67°
27
83°
64°
28
81°
60°
29
80°
59°
30
80°
60°
1
81°
59°
2
82°
59°
3
80°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Hammond
Hammond's September 2026 forecast shows daily high temperatures ranging from 80° to 94°, with overnight lows between 58° and 73°. The average high for September is 87° with an average low of 68°. 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 Hammond. See also: October | November | December.
