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