S
M
T
W
T
F
S
27
81°
69°
28
86°
70°
29
84°
72°
30
85°
71°
1
84°
70°
2
84°
70°
3
85°
72°
4
84°
71°
5
83°
72°
6
85°
71°
7
87°
71°
8
85°
70°
9
86°
70°
10
83°
69°
11
80°
70°
12
79°
70°
13
79°
69°
14
80°
71°
15
80°
69°
16
79°
69°
17
79°
71°
18
80°
71°
19
80°
70°
20
79°
71°
21
80°
71°
22
80°
70°
23
79°
71°
24
80°
70°
25
79°
71°
26
79°
71°
27
80°
70°
28
79°
71°
29
79°
71°
30
80°
70°
31
78°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Hilo
Hilo's October 2026 forecast shows daily high temperatures ranging from 78° to 87°, with overnight lows between 69° and 72°. The average high for October is 81° 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 October weather will actually feel in Hilo. See also: November | December | January.