S
M
T
W
T
F
S
26
54°
44°
27
74°
41°
28
67°
53°
29
54°
44°
30
56°
43°
1
48°
40°
2
49°
37°
3
64°
36°
4
76°
50°
5
67°
46°
6
58°
44°
7
58°
40°
8
61°
45°
9
72°
52°
10
63°
47°
11
60°
39°
12
67°
40°
13
61°
46°
14
63°
42°
15
68°
54°
16
77°
62°
17
80°
66°
18
90°
68°
19
76°
59°
20
66°
49°
21
66°
51°
22
64°
52°
23
66°
56°
24
74°
60°
25
76°
62°
26
74°
60°
27
75°
54°
28
75°
58°
29
76°
59°
30
75°
55°
31
68°
53°
1
69°
51°
2
68°
51°
3
69°
52°
4
70°
56°
5
77°
61°
6
80°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Flat Rock
Flat Rock's May 2026 forecast shows daily high temperatures ranging from 63° to 90°, with overnight lows between 42° and 68°. The average high for May is 73° with an average low of 56°. 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 Flat Rock. See also: June | July | August.
