S
M
T
W
T
F
S
26
94°
76°
27
94°
76°
28
93°
75°
29
89°
75°
30
89°
74°
31
90°
74°
1
93°
73°
2
93°
73°
3
92°
74°
4
94°
75°
5
93°
74°
6
93°
74°
7
92°
75°
8
92°
74°
9
91°
75°
10
93°
74°
11
92°
76°
12
92°
75°
13
93°
76°
14
93°
75°
15
92°
76°
16
90°
76°
17
90°
76°
18
91°
75°
19
Hist. Avg.
90°
75°
20
Hist. Avg.
90°
75°
21
Hist. Avg.
90°
75°
22
Hist. Avg.
90°
75°
23
Hist. Avg.
90°
75°
24
Hist. Avg.
90°
75°
25
Hist. Avg.
90°
75°
26
Hist. Avg.
90°
74°
27
Hist. Avg.
90°
74°
28
Hist. Avg.
90°
74°
29
Hist. Avg.
90°
74°
30
Hist. Avg.
90°
74°
31
Hist. Avg.
89°
74°
1
Hist. Avg.
89°
74°
2
Hist. Avg.
89°
74°
3
Hist. Avg.
89°
74°
4
Hist. Avg.
89°
74°
5
Hist. Avg.
89°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Jacksonville
Jacksonville's August 2026 forecast shows daily high temperatures ranging from 89° to 94°, with overnight lows between 73° and 76°. The average high for August is 92° with an average low of 75°. 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.
