S
M
T
W
T
F
S
26
88°
66°
27
92°
62°
28
85°
58°
29
65°
54°
30
68°
51°
1
70°
50°
2
79°
45°
3
83°
54°
4
89°
59°
5
81°
51°
6
69°
49°
7
77°
45°
8
84°
52°
9
88°
56°
10
72°
56°
11
80°
51°
12
85°
55°
13
92°
59°
14
93°
62°
15
93°
70°
16
90°
70°
17
87°
71°
18
93°
75°
19
80°
56°
20
79°
56°
21
70°
64°
22
85°
62°
23
85°
61°
24
87°
61°
25
88°
64°
26
88°
63°
27
81°
66°
28
85°
66°
29
88°
70°
30
90°
69°
31
94°
70°
1
91°
65°
2
87°
62°
3
82°
63°
4
83°
61°
5
85°
65°
6
89°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Petrolia
Petrolia's May 2026 forecast shows daily high temperatures ranging from 81° to 94°, with overnight lows between 61° and 70°. The average high for May is 87° with an average low of 66°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Petrolia. See also: June | July | August.
