S
M
T
W
T
F
S
26
N/A
27
79°
63°
28
80°
65°
29
71°
61°
30
76°
59°
31
81°
60°
1
83°
64°
2
80°
60°
3
79°
61°
4
86°
62°
5
79°
64°
6
78°
62°
7
77°
63°
8
78°
60°
9
79°
60°
10
77°
61°
11
77°
61°
12
79°
60°
13
79°
61°
14
78°
60°
15
75°
58°
16
76°
59°
17
79°
60°
18
79°
60°
19
74°
59°
20
75°
58°
21
72°
55°
22
73°
59°
23
76°
55°
24
76°
51°
25
68°
52°
26
69°
57°
27
73°
58°
28
74°
57°
29
74°
55°
30
68°
50°
31
67°
50°
1
66°
51°
2
66°
50°
3
67°
47°
4
67°
51°
5
70°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Lachute
Lachute's August 2026 forecast shows daily high temperatures ranging from 66° to 86°, with overnight lows between 47° and 65°. The average high for August is 75° with an average low of 58°. 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 Lachute. See also: September | October | November.
