S
M
T
W
T
F
S
26
77°
56°
27
79°
56°
28
86°
60°
29
92°
61°
30
97°
67°
1
97°
68°
2
100°
58°
3
97°
66°
4
80°
65°
5
81°
58°
6
89°
62°
7
101°
56°
8
105°
74°
9
105°
65°
10
108°
65°
11
110°
62°
12
102°
68°
13
100°
72°
14
100°
71°
15
98°
72°
16
92°
70°
17
88°
69°
18
88°
63°
19
93°
56°
20
98°
56°
21
99°
60°
22
98°
65°
23
93°
68°
24
97°
70°
25
99°
68°
26
95°
62°
27
87°
62°
28
85°
63°
29
94°
65°
30
99°
67°
31
101°
69°
1
103°
70°
2
106°
72°
3
105°
71°
4
105°
74°
5
101°
70°
6
99°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Thermal
Thermal's May 2026 forecast shows daily high temperatures ranging from 85° to 106°, with overnight lows between 62° and 74°. The average high for May is 98° with an average low of 68°. 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 Thermal. See also: June | July | August.
