S
M
T
W
T
F
S
26
85°
64°
27
89°
64°
28
89°
67°
29
86°
66°
30
72°
63°
1
63°
52°
2
71°
49°
3
76°
45°
4
80°
47°
5
83°
53°
6
84°
69°
7
74°
62°
8
67°
61°
9
69°
64°
10
84°
64°
11
82°
67°
12
82°
65°
13
83°
62°
14
83°
59°
15
87°
55°
16
84°
62°
17
86°
60°
18
90°
65°
19
90°
70°
20
89°
71°
21
76°
69°
22
88°
69°
23
84°
67°
24
84°
71°
25
74°
69°
26
85°
69°
27
88°
70°
28
83°
71°
29
84°
69°
30
87°
71°
31
87°
69°
1
87°
67°
2
87°
66°
3
83°
69°
4
82°
68°
5
83°
67°
6
84°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Hattiesburg
Hattiesburg's May 2026 forecast shows daily high temperatures ranging from 82° to 88°, with overnight lows between 66° and 71°. The average high for May is 85° 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 May weather will actually feel in Hattiesburg. See also: June | July | August.
