S
M
T
W
T
F
S
26
84°
58°
27
84°
59°
28
76°
63°
29
80°
61°
30
67°
52°
1
69°
47°
2
68°
42°
3
69°
47°
4
78°
55°
5
78°
64°
6
75°
58°
7
65°
42°
8
73°
53°
9
77°
58°
10
78°
57°
11
75°
58°
12
76°
57°
13
77°
61°
14
78°
60°
15
86°
64°
16
77°
59°
17
79°
60°
18
79°
60°
19
82°
61°
20
78°
61°
21
78°
56°
22
76°
53°
23
75°
52°
24
75°
54°
25
77°
56°
26
77°
54°
27
76°
54°
28
77°
55°
29
78°
57°
30
81°
62°
31
80°
63°
1
81°
64°
2
79°
63°
3
80°
60°
4
80°
60°
5
82°
64°
6
85°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Keys Mill
Keys Mill's May 2026 forecast shows daily high temperatures ranging from 65° to 86°, with overnight lows between 42° and 65°. The average high for May is 77° with an average low of 57°. 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 Keys Mill. See also: June | July | August.