S
M
T
W
T
F
S
27
83°
73°
28
83°
73°
29
83°
72°
30
84°
73°
1
84°
72°
2
83°
71°
3
84°
72°
4
84°
72°
5
85°
71°
6
84°
73°
7
85°
72°
8
86°
72°
9
80°
71°
10
80°
70°
11
79°
71°
12
80°
71°
13
81°
70°
14
80°
71°
15
84°
70°
16
83°
69°
17
83°
69°
18
82°
68°
19
84°
69°
20
84°
69°
21
83°
68°
22
83°
61°
23
75°
60°
24
75°
60°
25
76°
64°
26
82°
64°
27
76°
66°
28
78°
65°
29
81°
64°
30
79°
65°
31
81°
64°
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 75° to 86°, with overnight lows between 60° and 73°. The average high for October is 82° with an average low of 69°. 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.