S
M
T
W
T
F
S
26
78°
29°
27
52°
41°
28
72°
59°
29
74°
34°
30
56°
32°
1
70°
41°
2
62°
35°
3
67°
38°
4
77°
49°
5
73°
58°
6
72°
49°
7
65°
35°
8
72°
43°
9
74°
47°
10
81°
55°
11
71°
42°
12
76°
46°
13
77°
41°
14
60°
39°
15
74°
48°
16
86°
52°
17
89°
58°
18
89°
59°
19
88°
56°
20
91°
60°
21
75°
64°
22
75°
64°
23
75°
62°
24
81°
63°
25
76°
66°
26
76°
66°
27
78°
63°
28
81°
63°
29
80°
59°
30
78°
56°
31
71°
54°
1
74°
55°
2
75°
57°
3
76°
56°
4
80°
57°
5
79°
58°
6
77°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Hammond
Hammond's May 2026 forecast shows daily high temperatures ranging from 71° to 81°, with overnight lows between 54° and 66°. The average high for May is 77° with an average low of 60°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Hammond. See also: June | July | August.
