S
M
T
W
T
F
S
26
63°
28°
27
64°
37°
28
60°
41°
29
49°
36°
30
43°
32°
1
44°
32°
2
49°
27°
3
N/A
4
74°
40°
5
52°
31°
6
50°
32°
7
48°
34°
8
49°
35°
9
50°
35°
10
53°
36°
11
54°
35°
12
55°
38°
13
59°
39°
14
59°
40°
15
57°
39°
16
58°
40°
17
65°
44°
18
59°
42°
19
62°
47°
20
63°
47°
21
64°
41°
22
60°
37°
23
59°
40°
24
60°
38°
25
59°
38°
26
60°
39°
27
59°
39°
28
60°
40°
29
62°
42°
30
63°
46°
31
64°
44°
1
66°
45°
2
65°
50°
3
71°
51°
4
68°
49°
5
71°
53°
6
75°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Posen
Posen's May 2026 forecast shows daily high temperatures ranging from 48° to 75°, with overnight lows between 31° and 53°. The average high for May is 60° with an average low of 41°. 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 Posen. See also: June | July | August.
