S
M
T
W
T
F
S
26
64°
52°
27
68°
46°
28
73°
48°
29
81°
52°
30
84°
54°
1
84°
55°
2
72°
54°
3
68°
54°
4
61°
54°
5
68°
54°
6
73°
57°
7
82°
55°
8
84°
54°
9
90°
55°
10
88°
55°
11
93°
57°
12
90°
61°
13
82°
54°
14
90°
54°
15
88°
57°
16
81°
54°
17
77°
54°
18
84°
57°
19
88°
50°
20
91°
57°
21
93°
61°
22
90°
57°
23
82°
52°
24
85°
53°
25
80°
53°
26
75°
53°
27
79°
55°
28
81°
55°
29
84°
56°
30
85°
55°
31
87°
56°
1
91°
59°
2
97°
62°
3
96°
61°
4
94°
62°
5
95°
64°
6
89°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mcclellan
Mcclellan's May 2026 forecast shows daily high temperatures ranging from 75° to 97°, with overnight lows between 52° and 64°. The average high for May is 87° with an average low of 57°. 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 Mcclellan. See also: June | July | August.