S
M
T
W
T
F
S
26
82°
56°
27
82°
64°
28
74°
62°
29
80°
59°
30
66°
51°
1
63°
46°
2
67°
41°
3
70°
49°
4
76°
55°
5
77°
63°
6
76°
54°
7
65°
45°
8
72°
51°
9
75°
59°
10
78°
58°
11
76°
55°
12
78°
57°
13
80°
61°
14
76°
61°
15
88°
66°
16
79°
61°
17
81°
62°
18
81°
62°
19
83°
61°
20
78°
63°
21
80°
58°
22
77°
55°
23
76°
55°
24
76°
56°
25
78°
58°
26
77°
55°
27
77°
56°
28
78°
57°
29
80°
60°
30
82°
64°
31
83°
65°
1
82°
65°
2
80°
64°
3
81°
61°
4
82°
64°
5
84°
66°
6
85°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Waco
Waco's May 2026 forecast shows daily high temperatures ranging from 65° to 88°, with overnight lows between 41° and 67°. The average high for May is 78° with an average low of 59°. 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 Waco. See also: June | July | August.
