S
M
T
W
T
F
S
30
73°
56°
31
76°
58°
1
71°
53°
2
77°
58°
3
80°
57°
4
82°
52°
5
75°
48°
6
74°
48°
7
74°
56°
8
78°
55°
9
78°
47°
10
70°
45°
11
68°
45°
12
68°
46°
13
69°
50°
14
68°
44°
15
67°
42°
16
65°
43°
17
66°
41°
18
66°
42°
19
67°
43°
20
66°
43°
21
66°
46°
22
70°
51°
23
71°
43°
24
74°
51°
25
72°
49°
26
71°
40°
27
63°
47°
28
63°
49°
29
64°
46°
30
65°
46°
1
64°
42°
2
60°
39°
3
61°
47°
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 60° to 82°, with overnight lows between 39° and 58°. The average high for September is 70° with an average low of 48°. 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.
