S
M
T
W
T
F
S
26
101°
77°
27
101°
77°
28
100°
76°
29
100°
76°
30
101°
77°
31
101°
77°
1
100°
76°
2
100°
75°
3
99°
70°
4
95°
70°
5
99°
71°
6
101°
72°
7
102°
76°
8
103°
72°
9
101°
71°
10
94°
76°
11
101°
76°
12
102°
73°
13
101°
70°
14
94°
71°
15
94°
74°
16
96°
72°
17
98°
68°
18
93°
68°
19
92°
74°
20
93°
73°
21
93°
74°
22
98°
74°
23
98°
73°
24
97°
71°
25
97°
71°
26
94°
67°
27
95°
66°
28
90°
67°
29
91°
71°
30
93°
69°
31
90°
67°
1
90°
66°
2
91°
66°
3
91°
68°
4
93°
66°
5
93°
64°
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 90° to 103°, with overnight lows between 64° and 77°. The average high for August is 97° with an average low of 72°. 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.
