S
M
T
W
T
F
S
26
82°
66°
27
82°
69°
28
78°
68°
29
80°
65°
30
81°
67°
1
79°
66°
2
80°
68°
3
81°
68°
4
83°
67°
5
81°
69°
6
82°
66°
7
81°
67°
8
80°
66°
9
81°
65°
10
83°
65°
11
81°
65°
12
82°
64°
13
81°
66°
14
77°
65°
15
74°
65°
16
75°
64°
17
74°
65°
18
74°
65°
19
75°
64°
20
75°
65°
21
76°
66°
22
75°
66°
23
75°
67°
24
76°
66°
25
74°
65°
26
75°
66°
27
74°
65°
28
75°
66°
29
75°
66°
30
76°
65°
31
75°
66°
1
75°
65°
2
76°
66°
3
75°
65°
4
75°
67°
5
76°
67°
6
76°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Kea'au
Kea'au's May 2026 forecast shows daily high temperatures ranging from 74° to 83°, with overnight lows between 64° and 69°. The average high for May is 77° with an average low of 66°. 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 Kea'au. See also: June | July | August.
