S
M
T
W
T
F
S
26
57°
40°
27
68°
46°
28
64°
51°
29
56°
39°
30
54°
36°
1
49°
33°
2
56°
30°
3
69°
46°
4
81°
44°
5
61°
48°
6
57°
38°
7
58°
36°
8
65°
36°
9
74°
45°
10
65°
39°
11
53°
38°
12
69°
37°
13
58°
40°
14
65°
38°
15
75°
48°
16
84°
60°
17
81°
67°
18
79°
69°
19
80°
48°
20
62°
45°
21
59°
45°
22
65°
50°
23
71°
56°
24
75°
55°
25
72°
55°
26
73°
57°
27
74°
59°
28
73°
56°
29
71°
52°
30
76°
58°
31
77°
57°
1
74°
58°
2
76°
57°
3
69°
53°
4
68°
52°
5
70°
58°
6
76°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mettawa
Mettawa's May 2026 forecast shows daily high temperatures ranging from 59° to 84°, with overnight lows between 45° and 69°. The average high for May is 73° with an average low of 56°. 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 Mettawa. See also: June | July | August.
