S
M
T
W
T
F
S
26
89°
72°
27
93°
75°
28
89°
76°
29
78°
60°
30
66°
59°
1
60°
50°
2
76°
48°
3
82°
53°
4
85°
58°
5
89°
71°
6
77°
57°
7
67°
56°
8
74°
57°
9
91°
65°
10
89°
63°
11
80°
63°
12
85°
60°
13
90°
63°
14
92°
67°
15
87°
69°
16
89°
72°
17
86°
73°
18
90°
74°
19
87°
69°
20
81°
68°
21
83°
65°
22
81°
67°
23
87°
67°
24
84°
70°
25
87°
69°
26
82°
70°
27
89°
71°
28
88°
70°
29
87°
71°
30
87°
70°
31
83°
70°
1
83°
69°
2
85°
71°
3
86°
71°
4
88°
70°
5
85°
71°
6
85°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Killeen
Killeen's May 2026 forecast shows daily high temperatures ranging from 81° to 92°, with overnight lows between 65° and 74°. The average high for May is 86° with an average low of 70°. 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 Killeen. See also: June | July | August.
