S
M
T
W
T
F
S
26
90°
65°
27
86°
66°
28
88°
65°
29
91°
66°
30
86°
70°
31
82°
65°
1
83°
58°
2
87°
61°
3
74°
57°
4
69°
52°
5
80°
48°
6
86°
57°
7
75°
52°
8
79°
49°
9
76°
55°
10
75°
51°
11
80°
58°
12
80°
59°
13
80°
59°
14
81°
57°
15
75°
63°
16
77°
54°
17
80°
51°
18
73°
48°
19
78°
45°
20
79°
62°
21
81°
56°
22
74°
53°
23
78°
46°
24
81°
59°
25
75°
58°
26
79°
50°
27
74°
49°
28
80°
59°
29
81°
63°
30
79°
57°
31
79°
53°
1
77°
54°
2
76°
53°
3
79°
58°
4
79°
56°
5
73°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in St. Hilaire
St. Hilaire's August 2026 forecast shows daily high temperatures ranging from 73° to 81°, with overnight lows between 49° and 63°. The average high for August is 78° with an average low of 56°. 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 St. Hilaire. See also: September | October | November.
