S
M
T
W
T
F
S
26
79°
54°
27
82°
55°
28
59°
47°
29
65°
43°
30
67°
40°
1
68°
42°
2
66°
40°
3
82°
42°
4
83°
59°
5
63°
45°
6
63°
42°
7
70°
39°
8
78°
50°
9
83°
46°
10
67°
42°
11
78°
39°
12
80°
48°
13
81°
58°
14
82°
58°
15
86°
65°
16
87°
72°
17
87°
71°
18
86°
76°
19
78°
53°
20
60°
52°
21
64°
57°
22
76°
61°
23
75°
57°
24
85°
57°
25
84°
60°
26
82°
61°
27
82°
67°
28
79°
63°
29
76°
59°
30
78°
62°
31
77°
56°
1
75°
58°
2
78°
60°
3
77°
59°
4
78°
61°
5
83°
62°
6
81°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Thayer
Thayer's May 2026 forecast shows daily high temperatures ranging from 75° to 85°, with overnight lows between 56° and 67°. The average high for May is 79° with an average low of 61°. 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 Thayer. See also: June | July | August.