S
M
T
W
T
F
S
27
71°
57°
28
77°
48°
29
84°
45°
30
84°
65°
1
83°
62°
2
72°
47°
3
74°
43°
4
79°
45°
5
74°
41°
6
78°
44°
7
86°
50°
8
82°
53°
9
88°
54°
10
83°
53°
11
81°
60°
12
90°
64°
13
71°
51°
14
68°
56°
15
65°
48°
16
60°
45°
17
58°
40°
18
61°
43°
19
63°
43°
20
66°
46°
21
64°
41°
22
58°
42°
23
57°
37°
24
60°
41°
25
64°
45°
26
67°
40°
27
64°
37°
28
54°
33°
29
54°
40°
30
58°
41°
31
65°
43°
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 54° to 90°, with overnight lows between 33° and 64°. The average high for October is 67° with an average low of 46°. 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.