S
M
T
W
T
F
S
26
82°
62°
27
86°
65°
28
72°
67°
29
74°
63°
30
78°
63°
31
86°
63°
1
79°
68°
2
70°
66°
3
74°
56°
4
83°
53°
5
85°
59°
6
82°
68°
7
84°
66°
8
87°
63°
9
82°
59°
10
83°
67°
11
80°
64°
12
80°
64°
13
78°
60°
14
79°
61°
15
76°
66°
16
82°
64°
17
75°
58°
18
80°
62°
19
79°
64°
20
78°
59°
21
79°
62°
22
78°
61°
23
75°
60°
24
75°
58°
25
74°
51°
26
80°
62°
27
80°
61°
28
72°
56°
29
74°
60°
30
77°
61°
31
79°
61°
1
80°
62°
2
80°
61°
3
79°
61°
4
77°
60°
5
75°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Petrolia
Petrolia's August 2026 forecast shows daily high temperatures ranging from 72° to 82°, with overnight lows between 51° and 66°. The average high for August is 78° 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 Petrolia. See also: September | October | November.
