S
M
T
W
T
F
S
27
88°
59°
28
N/A
29
90°
58°
30
90°
65°
1
89°
70°
2
86°
72°
3
84°
71°
4
78°
71°
5
77°
71°
6
75°
66°
7
82°
65°
8
80°
66°
9
71°
64°
10
84°
67°
11
81°
64°
12
90°
55°
13
90°
56°
14
90°
59°
15
88°
61°
16
88°
58°
17
72°
46°
18
75°
52°
19
75°
53°
20
79°
56°
21
79°
55°
22
79°
57°
23
78°
55°
24
79°
56°
25
76°
51°
26
69°
54°
27
76°
51°
28
75°
48°
29
68°
45°
30
68°
54°
31
72°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Jacksonville
Jacksonville's October 2026 forecast shows daily high temperatures ranging from 68° to 90°, with overnight lows between 45° and 61°. The average high for October is 78° 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 Jacksonville. See also: November | December | January.