S
M
T
W
T
F
S
30
82°
65°
31
84°
66°
1
83°
65°
2
80°
65°
3
80°
64°
4
79°
64°
5
83°
63°
6
83°
64°
7
84°
65°
8
85°
65°
9
79°
64°
10
77°
62°
11
82°
64°
12
83°
64°
13
82°
61°
14
73°
52°
15
71°
54°
16
72°
58°
17
74°
56°
18
70°
52°
19
72°
55°
20
78°
56°
21
78°
58°
22
77°
58°
23
78°
49°
24
70°
48°
25
72°
56°
26
74°
58°
27
74°
50°
28
76°
47°
29
67°
48°
30
69°
52°
1
67°
53°
2
70°
55°
3
75°
55°
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 67° to 85°, with overnight lows between 47° and 66°. The average high for September is 77° 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 Hammond. See also: October | November | December.
