S
M
T
W
T
F
S
26
57°
40°
27
66°
46°
28
65°
52°
29
55°
38°
30
54°
35°
1
49°
31°
2
55°
29°
3
68°
45°
4
81°
47°
5
62°
48°
6
58°
39°
7
58°
33°
8
65°
36°
9
74°
44°
10
64°
38°
11
55°
36°
12
70°
35°
13
57°
39°
14
65°
37°
15
75°
48°
16
85°
64°
17
88°
60°
18
82°
67°
19
80°
61°
20
61°
47°
21
55°
47°
22
N/A
23
59°
56°
24
72°
61°
25
78°
66°
26
76°
64°
27
71°
59°
28
69°
57°
29
71°
55°
30
66°
56°
31
70°
59°
1
73°
61°
2
70°
62°
3
71°
61°
4
73°
55°
5
71°
54°
6
66°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Buena Park
Buena Park's May 2026 forecast shows daily high temperatures ranging from 59° to 78°, with overnight lows between 52° and 66°. The average high for May is 70° 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 Buena Park. See also: June | July | August.