S
M
T
W
T
F
S
26
59°
37°
27
63°
36°
28
63°
41°
29
63°
39°
30
64°
37°
1
73°
41°
2
75°
55°
3
70°
54°
4
64°
52°
5
61°
48°
6
52°
41°
7
53°
43°
8
62°
48°
9
68°
52°
10
71°
51°
11
67°
52°
12
66°
49°
13
59°
43°
14
55°
43°
15
57°
44°
16
58°
45°
17
66°
53°
18
66°
48°
19
59°
46°
20
57°
47°
21
57°
46°
22
58°
45°
23
58°
46°
24
60°
48°
25
64°
49°
26
68°
54°
27
68°
55°
28
67°
53°
29
64°
50°
30
66°
51°
31
69°
55°
1
70°
55°
2
69°
54°
3
69°
51°
4
68°
54°
5
69°
56°
6
70°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Hemer
Hemer's May 2026 forecast shows daily high temperatures ranging from 52° to 71°, with overnight lows between 41° and 56°. The average high for May is 63° with an average low of 50°. 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 Hemer. See also: June | July | August.