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°
77°
2
90°
76°
3
93°
72°
4
96°
72°
5
96°
75°
6
91°
75°
7
98°
74°
8
94°
74°
9
94°
73°
10
88°
75°
11
96°
74°
12
96°
77°
13
98°
80°
14
97°
74°
15
98°
77°
16
97°
78°
17
98°
79°
18
97°
79°
19
97°
78°
20
96°
78°
21
99°
74°
22
98°
74°
23
98°
79°
24
92°
76°
25
90°
74°
26
96°
76°
27
87°
75°
28
89°
74°
29
91°
71°
30
90°
72°
31
91°
71°
1
93°
73°
2
93°
72°
3
94°
72°
4
90°
71°
5
91°
70°
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 87° to 96°, with overnight lows between 70° and 76°. The average high for August is 91° 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.