S
M
T
W
T
F
S
27
89°
75°
28
93°
65°
29
92°
65°
30
92°
69°
1
93°
74°
2
90°
69°
3
88°
70°
4
88°
74°
5
86°
73°
6
87°
71°
7
89°
66°
8
91°
74°
9
86°
76°
10
83°
66°
11
84°
64°
12
83°
67°
13
83°
65°
14
83°
65°
15
78°
66°
16
79°
67°
17
80°
67°
18
78°
66°
19
79°
67°
20
78°
67°
21
80°
66°
22
80°
65°
23
79°
64°
24
76°
67°
25
77°
66°
26
76°
67°
27
76°
67°
28
77°
66°
29
76°
67°
30
76°
67°
31
77°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Kailua
Kailua's October 2026 forecast shows daily high temperatures ranging from 76° to 84°, with overnight lows between 64° and 67°. The average high for October is 79° 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 October weather will actually feel in Kailua. See also: November | December | January.