S
M
T
W
T
F
S
27
64°
50°
28
62°
53°
29
66°
52°
30
64°
53°
1
67°
54°
2
69°
53°
3
68°
52°
4
67°
48°
5
61°
48°
6
60°
49°
7
61°
48°
8
63°
47°
9
60°
46°
10
59°
49°
11
63°
50°
12
63°
44°
13
60°
46°
14
59°
44°
15
60°
47°
16
59°
44°
17
59°
47°
18
58°
48°
19
60°
50°
20
65°
45°
21
61°
45°
22
59°
44°
23
57°
43°
24
58°
49°
25
65°
44°
26
64°
46°
27
64°
45°
28
Hist. Avg.
60°
46°
29
Hist. Avg.
60°
45°
30
Hist. Avg.
60°
45°
31
Hist. Avg.
60°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Arcata
Arcata's October 2026 forecast shows daily high temperatures ranging from 57° to 69°, with overnight lows between 43° and 54°. The average high for October is 62° with an average low of 48°. 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 Arcata. See also: November | December | January.
