S
M
T
W
T
F
S
26
85°
63°
27
82°
73°
28
81°
70°
29
72°
62°
30
66°
55°
1
67°
53°
2
73°
49°
3
79°
50°
4
81°
57°
5
75°
65°
6
74°
50°
7
69°
51°
8
77°
53°
9
84°
59°
10
80°
63°
11
76°
58°
12
80°
53°
13
82°
59°
14
81°
56°
15
91°
63°
16
87°
73°
17
90°
73°
18
87°
74°
19
84°
70°
20
72°
63°
21
76°
66°
22
77°
63°
23
78°
65°
24
82°
67°
25
83°
65°
26
83°
66°
27
81°
67°
28
80°
66°
29
81°
65°
30
84°
64°
31
86°
67°
1
87°
69°
2
87°
68°
3
84°
67°
4
80°
62°
5
83°
64°
6
87°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Posey
Posey's May 2026 forecast shows daily high temperatures ranging from 72° to 90°, with overnight lows between 62° and 74°. The average high for May is 82° with an average low of 67°. 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 Posey. See also: June | July | August.
