S
M
T
W
T
F
S
26
79°
61°
27
66°
50°
28
77°
48°
29
81°
59°
30
77°
63°
1
70°
59°
2
63°
50°
3
72°
45°
4
79°
46°
5
79°
50°
6
86°
55°
7
79°
68°
8
75°
57°
9
79°
61°
10
86°
66°
11
88°
64°
12
72°
59°
13
77°
61°
14
82°
61°
15
81°
52°
16
86°
54°
17
90°
66°
18
90°
63°
19
91°
61°
20
90°
63°
21
90°
69°
22
87°
71°
23
87°
72°
24
83°
71°
25
85°
72°
26
87°
69°
27
85°
67°
28
85°
66°
29
80°
65°
30
82°
67°
31
84°
65°
1
85°
65°
2
84°
64°
3
85°
65°
4
84°
66°
5
84°
67°
6
85°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Calomet Valley
Calomet Valley's May 2026 forecast shows daily high temperatures ranging from 80° to 90°, with overnight lows between 64° and 72°. The average high for May is 85° with an average low of 68°. 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 Calomet Valley. See also: June | July | August.
