S
M
T
W
T
F
S
30
92°
75°
31
90°
75°
1
91°
75°
2
92°
71°
3
94°
73°
4
88°
73°
5
89°
72°
6
92°
72°
7
93°
73°
8
94°
72°
9
93°
71°
10
94°
73°
11
91°
72°
12
89°
71°
13
90°
70°
14
88°
68°
15
85°
71°
16
84°
70°
17
85°
69°
18
85°
70°
19
83°
70°
20
83°
69°
21
84°
69°
22
83°
68°
23
85°
67°
24
85°
68°
25
87°
67°
26
87°
68°
27
88°
67°
28
88°
66°
29
87°
65°
30
88°
67°
1
85°
67°
2
82°
66°
3
84°
66°
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 82° to 94°, with overnight lows between 65° and 73°. The average high for September is 88° with an average low of 69°. 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.
