S
M
T
W
T
F
S
26
64°
39°
27
68°
43°
28
73°
52°
29
68°
48°
30
66°
41°
1
75°
45°
2
81°
48°
3
75°
46°
4
72°
55°
5
68°
52°
6
67°
46°
7
63°
45°
8
71°
50°
9
75°
55°
10
80°
56°
11
67°
50°
12
65°
51°
13
65°
51°
14
60°
49°
15
64°
49°
16
65°
51°
17
70°
54°
18
68°
50°
19
65°
46°
20
61°
48°
21
61°
46°
22
62°
46°
23
62°
47°
24
64°
47°
25
69°
49°
26
72°
55°
27
72°
56°
28
71°
56°
29
69°
55°
30
71°
53°
31
73°
56°
1
74°
57°
2
73°
56°
3
74°
57°
4
74°
57°
5
73°
56°
6
74°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Frankfurt
Frankfurt's May 2026 forecast shows daily high temperatures ranging from 60° to 80°, with overnight lows between 45° and 57°. The average high for May is 69° with an average low of 52°. 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 Frankfurt. See also: June | July | August.