S
M
T
W
T
F
S
26
84°
70°
27
88°
72°
28
79°
68°
29
66°
59°
30
63°
57°
1
63°
54°
2
75°
53°
3
81°
58°
4
80°
66°
5
82°
67°
6
75°
48°
7
71°
52°
8
80°
60°
9
82°
63°
10
80°
62°
11
78°
59°
12
84°
65°
13
85°
65°
14
86°
63°
15
83°
61°
16
79°
65°
17
77°
64°
18
78°
65°
19
80°
66°
20
83°
66°
21
84°
59°
22
79°
58°
23
79°
60°
24
80°
62°
25
80°
60°
26
79°
59°
27
80°
60°
28
81°
61°
29
79°
66°
30
80°
67°
31
82°
66°
1
82°
66°
2
84°
64°
3
85°
69°
4
86°
70°
5
83°
70°
6
82°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Commerce
Commerce's May 2026 forecast shows daily high temperatures ranging from 71° to 86°, with overnight lows between 48° and 70°. The average high for May is 81° with an average low of 63°. 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 Commerce. See also: June | July | August.