S
M
T
W
T
F
S
27
87°
63°
28
86°
64°
29
85°
63°
30
86°
64°
1
86°
64°
2
85°
63°
3
86°
63°
4
86°
62°
5
84°
62°
6
84°
61°
7
82°
58°
8
73°
52°
9
72°
50°
10
76°
53°
11
81°
57°
12
81°
57°
13
80°
58°
14
81°
58°
15
81°
57°
16
80°
57°
17
79°
56°
18
80°
57°
19
78°
58°
20
77°
55°
21
75°
53°
22
72°
48°
23
66°
50°
24
67°
51°
25
74°
54°
26
68°
42°
27
69°
44°
28
70°
50°
29
74°
54°
30
76°
55°
31
75°
42°
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 66° to 87°, with overnight lows between 42° and 64°. The average high for October is 78° 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.