S
M
T
W
T
F
S
26
82°
66°
27
82°
69°
28
78°
68°
29
80°
65°
30
81°
67°
1
81°
67°
2
79°
69°
3
76°
69°
4
81°
72°
5
83°
72°
6
83°
70°
7
85°
71°
8
83°
68°
9
84°
67°
10
83°
66°
11
84°
68°
12
82°
67°
13
80°
66°
14
83°
69°
15
84°
67°
16
83°
68°
17
80°
67°
18
77°
67°
19
77°
68°
20
78°
68°
21
77°
67°
22
77°
68°
23
78°
67°
24
77°
67°
25
77°
68°
26
78°
68°
27
77°
67°
28
78°
69°
29
78°
68°
30
79°
67°
31
78°
68°
1
78°
67°
2
79°
66°
3
78°
67°
4
78°
67°
5
79°
68°
6
78°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in North Hilo
North Hilo's May 2026 forecast shows daily high temperatures ranging from 77° to 85°, with overnight lows between 66° and 72°. The average high for May is 80° with an average low of 68°. 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 North Hilo. See also: June | July | August.
