S
M
T
W
T
F
S
26
66°
37°
27
68°
41°
28
63°
46°
29
63°
46°
30
72°
46°
1
72°
46°
2
72°
50°
3
66°
54°
4
65°
45°
5
58°
41°
6
55°
39°
7
57°
42°
8
62°
48°
9
64°
49°
10
63°
50°
11
61°
48°
12
60°
47°
13
59°
47°
14
58°
44°
15
58°
45°
16
59°
46°
17
58°
45°
18
58°
43°
19
57°
48°
20
57°
45°
21
58°
43°
22
57°
44°
23
58°
45°
24
59°
49°
25
60°
50°
26
60°
51°
27
61°
49°
28
59°
46°
29
59°
45°
30
60°
47°
31
65°
50°
1
66°
50°
2
65°
52°
3
66°
49°
4
61°
50°
5
63°
51°
6
65°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Keymer
Keymer's May 2026 forecast shows daily high temperatures ranging from 55° to 66°, with overnight lows between 39° and 53°. The average high for May is 60° with an average low of 47°. 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 Keymer. See also: June | July | August.
