S
M
T
W
T
F
S
26
88°
69°
27
87°
67°
28
90°
70°
29
84°
68°
30
83°
70°
31
84°
68°
1
85°
71°
2
92°
71°
3
91°
70°
4
91°
70°
5
90°
69°
6
91°
71°
7
92°
72°
8
92°
71°
9
90°
68°
10
82°
64°
11
85°
69°
12
84°
69°
13
87°
68°
14
83°
62°
15
82°
61°
16
82°
62°
17
83°
62°
18
82°
65°
19
84°
66°
20
86°
68°
21
86°
68°
22
84°
67°
23
87°
68°
24
88°
63°
25
89°
62°
26
88°
65°
27
86°
66°
28
84°
59°
29
81°
58°
30
79°
61°
31
80°
63°
1
82°
60°
2
79°
55°
3
78°
53°
4
76°
55°
5
77°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Louisiana
Louisiana's August 2026 forecast shows daily high temperatures ranging from 76° to 92°, with overnight lows between 53° and 72°. The average high for August is 85° with an average low of 65°. 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 Louisiana. See also: September | October | November.