S
M
T
W
T
F
S
26
65°
48°
27
79°
41°
28
77°
54°
29
69°
49°
30
58°
38°
1
58°
32°
2
55°
32°
3
62°
49°
4
72°
55°
5
75°
53°
6
64°
43°
7
56°
36°
8
58°
44°
9
65°
46°
10
66°
47°
11
70°
50°
12
71°
51°
13
69°
49°
14
68°
47°
15
70°
52°
16
68°
52°
17
71°
53°
18
75°
54°
19
76°
55°
20
74°
55°
21
77°
56°
22
77°
56°
23
78°
55°
24
73°
53°
25
71°
54°
26
77°
57°
27
78°
55°
28
74°
56°
29
75°
56°
30
72°
54°
31
75°
56°
1
72°
54°
2
74°
58°
3
77°
53°
4
72°
50°
5
72°
51°
6
73°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in McArthur
McArthur's May 2026 forecast shows daily high temperatures ranging from 55° to 78°, with overnight lows between 32° and 58°. The average high for May is 71° with an average low of 51°. 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 McArthur. See also: June | July | August.
