S
M
T
W
T
F
S
27
85°
61°
28
89°
67°
29
85°
70°
30
86°
72°
1
87°
75°
2
87°
77°
3
87°
74°
4
87°
75°
5
87°
75°
6
78°
74°
7
80°
74°
8
80°
74°
9
81°
76°
10
85°
78°
11
81°
70°
12
87°
67°
13
84°
69°
14
83°
67°
15
83°
69°
16
86°
68°
17
76°
67°
18
72°
67°
19
72°
66°
20
74°
59°
21
79°
59°
22
75°
59°
23
77°
61°
24
75°
63°
25
75°
68°
26
76°
69°
27
76°
68°
28
77°
71°
29
77°
71°
30
79°
71°
31
81°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in St. Augustine
St. Augustine's October 2026 forecast shows daily high temperatures ranging from 79° to 81°, with overnight lows between 71° and 72°. The average high for October is 80° with an average low of 72°. 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 St. Augustine. See also: November | December | January.