S
M
T
W
T
F
S
26
68°
38°
27
71°
51°
28
64°
49°
29
59°
35°
30
58°
33°
1
51°
31°
2
58°
27°
3
71°
43°
4
80°
41°
5
57°
41°
6
56°
32°
7
62°
27°
8
70°
33°
9
74°
43°
10
66°
35°
11
64°
40°
12
73°
40°
13
66°
38°
14
72°
35°
15
80°
54°
16
84°
59°
17
84°
64°
18
78°
67°
19
74°
48°
20
65°
42°
21
62°
48°
22
61°
53°
23
69°
53°
24
73°
54°
25
79°
55°
26
82°
57°
27
78°
57°
28
76°
56°
29
76°
53°
30
78°
56°
31
74°
53°
1
77°
58°
2
77°
57°
3
69°
53°
4
69°
52°
5
71°
58°
6
77°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Machesney Park
Machesney Park's May 2026 forecast shows daily high temperatures ranging from 61° to 82°, with overnight lows between 42° and 67°. The average high for May is 73° 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 Machesney Park. See also: June | July | August.
