S
M
T
W
T
F
S
26
54°
34°
27
46°
37°
28
48°
32°
29
52°
28°
30
52°
27°
1
54°
27°
2
70°
32°
3
66°
47°
4
53°
30°
5
42°
31°
6
47°
32°
7
57°
32°
8
61°
40°
9
66°
41°
10
63°
42°
11
67°
45°
12
72°
49°
13
69°
48°
14
69°
46°
15
66°
45°
16
67°
46°
17
69°
50°
18
71°
51°
19
67°
52°
20
67°
46°
21
62°
43°
22
62°
43°
23
64°
44°
24
64°
43°
25
63°
44°
26
64°
44°
27
64°
45°
28
65°
45°
29
67°
53°
30
65°
48°
31
68°
51°
1
75°
56°
2
76°
58°
3
77°
58°
4
78°
59°
5
77°
59°
6
77°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Underwood
Underwood's May 2026 forecast shows daily high temperatures ranging from 42° to 78°, with overnight lows between 30° and 60°. The average high for May is 66° with an average low of 46°. 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 Underwood. See also: June | July | August.