S
M
T
W
T
F
S
26
95°
77°
27
95°
78°
28
94°
77°
29
93°
78°
30
96°
80°
31
95°
79°
1
96°
79°
2
94°
72°
3
93°
74°
4
95°
76°
5
93°
74°
6
95°
73°
7
93°
72°
8
93°
74°
9
92°
73°
10
91°
72°
11
91°
73°
12
93°
72°
13
91°
73°
14
92°
72°
15
89°
72°
16
88°
70°
17
91°
74°
18
90°
73°
19
93°
74°
20
93°
75°
21
92°
75°
22
92°
74°
23
90°
74°
24
91°
73°
25
92°
74°
26
92°
74°
27
93°
73°
28
92°
74°
29
93°
74°
30
92°
73°
31
89°
73°
1
90°
72°
2
92°
74°
3
93°
74°
4
93°
73°
5
89°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Baton Rouge
Baton Rouge's August 2026 forecast shows daily high temperatures ranging from 88° to 96°, with overnight lows between 70° and 79°. The average high for August is 92° with an average low of 73°. 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 Baton Rouge. See also: September | October | November.