S
M
T
W
T
F
S
26
95°
75°
27
94°
74°
28
95°
75°
29
92°
74°
30
90°
74°
31
93°
73°
1
88°
74°
2
93°
74°
3
90°
73°
4
94°
74°
5
88°
71°
6
85°
70°
7
88°
73°
8
89°
72°
9
89°
72°
10
88°
69°
11
89°
69°
12
89°
71°
13
90°
73°
14
89°
73°
15
94°
72°
16
94°
73°
17
95°
73°
18
95°
72°
19
94°
73°
20
95°
72°
21
89°
63°
22
87°
63°
23
88°
64°
24
87°
66°
25
89°
65°
26
92°
70°
27
94°
71°
28
93°
70°
29
91°
71°
30
94°
70°
31
93°
66°
1
91°
66°
2
93°
70°
3
94°
69°
4
94°
70°
5
93°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Jacksonville
Jacksonville's August 2026 forecast shows daily high temperatures ranging from 85° to 95°, with overnight lows between 63° and 75°. The average high for August is 91° with an average low of 71°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Jacksonville. See also: September | October | November.
