S
M
T
W
T
F
S
26
82°
63°
27
82°
62°
28
81°
63°
29
81°
63°
30
80°
62°
31
74°
62°
1
74°
61°
2
75°
61°
3
73°
60°
4
73°
61°
5
74°
60°
6
73°
61°
7
74°
61°
8
76°
60°
9
77°
61°
10
76°
62°
11
75°
61°
12
74°
60°
13
77°
61°
14
78°
61°
15
73°
60°
16
71°
60°
17
73°
59°
18
72°
60°
19
74°
60°
20
73°
58°
21
72°
55°
22
71°
51°
23
70°
49°
24
69°
54°
25
71°
56°
26
74°
49°
27
70°
48°
28
69°
53°
29
68°
55°
30
75°
48°
31
69°
48°
1
70°
55°
2
74°
56°
3
67°
48°
4
67°
54°
5
68°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Louiseville
Louiseville's August 2026 forecast shows daily high temperatures ranging from 67° to 82°, with overnight lows between 47° and 63°. The average high for August is 74° 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 Louiseville. See also: September | October | November.
