S
M
T
W
T
F
S
26
66°
41°
27
70°
51°
28
63°
49°
29
59°
35°
30
59°
33°
1
51°
32°
2
58°
28°
3
70°
41°
4
81°
42°
5
57°
43°
6
58°
32°
7
63°
28°
8
71°
38°
9
75°
42°
10
67°
37°
11
62°
37°
12
71°
37°
13
65°
36°
14
74°
32°
15
78°
51°
16
84°
59°
17
87°
62°
18
79°
64°
19
79°
54°
20
64°
44°
21
63°
45°
22
71°
51°
23
84°
55°
24
78°
58°
25
86°
53°
26
84°
55°
27
91°
55°
28
80°
51°
29
80°
54°
30
83°
53°
31
77°
50°
1
82°
52°
2
82°
53°
3
81°
57°
4
77°
56°
5
83°
60°
6
84°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Somonauk
Somonauk's May 2026 forecast shows daily high temperatures ranging from 77° to 91°, with overnight lows between 50° and 61°. The average high for May is 82° 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 Somonauk. See also: June | July | August.
