S
M
T
W
T
F
S
27
71°
57°
28
65°
51°
29
71°
47°
30
78°
51°
1
83°
54°
2
84°
58°
3
82°
57°
4
81°
55°
5
79°
60°
6
83°
59°
7
83°
58°
8
84°
57°
9
81°
58°
10
76°
55°
11
67°
50°
12
59°
45°
13
63°
44°
14
69°
49°
15
69°
46°
16
71°
47°
17
71°
46°
18
62°
42°
19
64°
46°
20
65°
46°
21
65°
45°
22
64°
45°
23
64°
44°
24
63°
45°
25
64°
45°
26
63°
44°
27
59°
38°
28
52°
35°
29
52°
34°
30
53°
35°
31
52°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Lake Arrowhead
Lake Arrowhead's October 2026 forecast shows daily high temperatures ranging from 52° to 84°, with overnight lows between 34° and 60°. The average high for October is 67° with an average low of 46°. 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 Lake Arrowhead. See also: November | December | January.