S
M
T
W
T
F
S
26
67°
49°
27
79°
49°
28
74°
58°
29
65°
48°
30
59°
43°
1
53°
38°
2
53°
35°
3
63°
33°
4
74°
48°
5
70°
49°
6
60°
41°
7
61°
38°
8
70°
42°
9
74°
55°
10
68°
53°
11
71°
42°
12
74°
45°
13
65°
43°
14
64°
44°
15
69°
56°
16
78°
63°
17
87°
64°
18
85°
64°
19
78°
60°
20
75°
51°
21
72°
55°
22
73°
53°
23
72°
52°
24
73°
52°
25
77°
57°
26
78°
53°
27
77°
59°
28
80°
58°
29
78°
58°
30
78°
54°
31
72°
52°
1
73°
51°
2
73°
50°
3
74°
51°
4
74°
53°
5
82°
60°
6
84°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Crystal Lakes
Crystal Lakes's May 2026 forecast shows daily high temperatures ranging from 64° to 87°, with overnight lows between 43° and 64°. The average high for May is 76° with an average low of 55°. 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 Crystal Lakes. See also: June | July | August.
