S
M
T
W
T
F
S
27
N/A
28
53°
42°
29
52°
45°
30
49°
43°
1
51°
42°
2
49°
42°
3
51°
44°
4
51°
45°
5
49°
39°
6
48°
37°
7
50°
40°
8
48°
44°
9
49°
44°
10
48°
43°
11
54°
43°
12
49°
39°
13
51°
40°
14
47°
37°
15
49°
40°
16
47°
41°
17
50°
39°
18
51°
40°
19
51°
42°
20
53°
42°
21
48°
38°
22
46°
36°
23
48°
34°
24
48°
31°
25
48°
36°
26
52°
45°
27
49°
44°
28
49°
44°
29
47°
43°
30
51°
42°
31
51°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Haleakala National Park
Haleakala National Park's October 2026 forecast shows daily high temperatures ranging from 47° to 51°, with overnight lows between 41° and 43°. The average high for October is 50° with an average low of 42°. 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 Haleakala National Park. See also: November | December | January.