S
M
T
W
T
F
S
26
83°
63°
27
83°
66°
28
82°
66°
29
79°
62°
30
83°
57°
31
85°
62°
1
78°
68°
2
73°
63°
3
79°
60°
4
82°
55°
5
83°
59°
6
84°
67°
7
84°
68°
8
88°
67°
9
86°
58°
10
86°
68°
11
76°
63°
12
71°
62°
13
81°
61°
14
76°
67°
15
82°
69°
16
87°
71°
17
81°
67°
18
79°
61°
19
82°
65°
20
81°
64°
21
82°
61°
22
79°
62°
23
73°
50°
24
74°
50°
25
77°
55°
26
81°
63°
27
79°
58°
28
80°
56°
29
78°
59°
30
80°
61°
31
77°
57°
1
78°
56°
2
81°
56°
3
77°
58°
4
79°
57°
5
80°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Lafayette
Lafayette's August 2026 forecast shows daily high temperatures ranging from 73° to 81°, with overnight lows between 50° and 63°. The average high for August is 78° with an average low of 57°. 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 Lafayette. See also: September | October | November.