S
M
T
W
T
F
S
27
89°
64°
28
88°
56°
29
83°
58°
30
85°
63°
1
88°
62°
2
88°
59°
3
87°
57°
4
88°
62°
5
88°
62°
6
86°
63°
7
87°
59°
8
88°
61°
9
78°
57°
10
85°
58°
11
77°
60°
12
77°
61°
13
82°
61°
14
83°
58°
15
84°
58°
16
75°
57°
17
83°
48°
18
75°
48°
19
74°
49°
20
76°
54°
21
78°
56°
22
81°
56°
23
81°
55°
24
80°
47°
25
74°
53°
26
73°
54°
27
71°
45°
28
71°
43°
29
70°
42°
30
67°
45°
31
68°
53°
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 67° to 89°, with overnight lows between 42° and 64°. The average high for October is 80° with an average low of 56°. 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.