S
M
T
W
T
F
S
26
66°
37°
27
66°
34°
28
70°
43°
29
64°
45°
30
61°
36°
1
70°
37°
2
77°
37°
3
79°
41°
4
75°
54°
5
73°
52°
6
68°
48°
7
57°
43°
8
66°
34°
9
72°
45°
10
73°
46°
11
64°
43°
12
48°
37°
13
57°
36°
14
55°
45°
15
57°
45°
16
54°
37°
17
59°
36°
18
64°
36°
19
66°
48°
20
66°
52°
21
72°
48°
22
79°
45°
23
82°
59°
24
85°
59°
25
85°
57°
26
87°
60°
27
81°
49°
28
77°
51°
29
82°
56°
30
78°
55°
31
74°
54°
1
74°
54°
2
71°
54°
3
69°
52°
4
71°
54°
5
62°
49°
6
64°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Monheim
Monheim's May 2026 forecast shows daily high temperatures ranging from 62° to 87°, with overnight lows between 49° and 60°. The average high for May is 76° with an average low of 54°. 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 Monheim. See also: June | July | August.
