S
M
T
W
T
F
S
26
78°
58°
27
78°
59°
28
79°
61°
29
80°
63°
30
81°
59°
31
84°
62°
1
85°
65°
2
86°
64°
3
86°
65°
4
85°
60°
5
81°
58°
6
78°
57°
7
77°
57°
8
78°
58°
9
79°
58°
10
80°
59°
11
81°
59°
12
83°
58°
13
84°
62°
14
83°
63°
15
85°
64°
16
85°
64°
17
82°
63°
18
78°
58°
19
78°
57°
20
79°
60°
21
78°
63°
22
78°
61°
23
77°
57°
24
78°
62°
25
78°
63°
26
84°
56°
27
77°
62°
28
78°
64°
29
84°
62°
30
83°
63°
31
82°
61°
1
81°
60°
2
82°
60°
3
81°
58°
4
82°
60°
5
81°
59°
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 77° to 86°, with overnight lows between 56° and 65°. The average high for August is 81° with an average low of 61°. 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.
