S
M
T
W
T
F
S
27
N/A
28
73°
48°
29
77°
48°
30
73°
49°
1
72°
54°
2
76°
52°
3
81°
57°
4
88°
59°
5
81°
61°
6
77°
56°
7
76°
54°
8
73°
59°
9
71°
61°
10
71°
59°
11
67°
54°
12
68°
50°
13
70°
45°
14
81°
50°
15
82°
54°
16
96°
60°
17
97°
61°
18
82°
56°
19
72°
52°
20
72°
58°
21
69°
57°
22
67°
56°
23
70°
50°
24
77°
51°
25
76°
52°
26
76°
51°
27
72°
53°
28
73°
56°
29
70°
55°
30
69°
53°
31
73°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Arroyo Grande
Arroyo Grande's October 2026 forecast shows daily high temperatures ranging from 67° to 77°, with overnight lows between 50° and 58°. The average high for October is 72° with an average low of 54°. 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 Arroyo Grande. See also: November | December | January.
