S
M
T
W
T
F
S
26
81°
58°
27
86°
63°
28
72°
57°
29
70°
52°
30
65°
44°
1
67°
45°
2
68°
43°
3
78°
39°
4
81°
58°
5
N/A
6
60°
46°
7
67°
44°
8
79°
53°
9
84°
61°
10
69°
46°
11
73°
52°
12
79°
61°
13
82°
62°
14
84°
62°
15
85°
64°
16
84°
63°
17
79°
61°
18
77°
56°
19
80°
60°
20
78°
58°
21
80°
54°
22
72°
53°
23
73°
54°
24
72°
56°
25
70°
54°
26
72°
54°
27
74°
55°
28
75°
56°
29
76°
60°
30
78°
63°
31
77°
64°
1
77°
62°
2
78°
59°
3
77°
64°
4
77°
65°
5
78°
66°
6
78°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Sycamore Heights
Sycamore Heights's May 2026 forecast shows daily high temperatures ranging from 60° to 85°, with overnight lows between 44° and 66°. The average high for May is 76° with an average low of 58°. 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 Sycamore Heights. See also: June | July | August.
