S
M
T
W
T
F
S
26
54°
37°
27
69°
38°
28
70°
46°
29
48°
39°
30
48°
35°
1
45°
37°
2
46°
34°
3
64°
35°
4
73°
48°
5
57°
39°
6
50°
38°
7
50°
36°
8
57°
41°
9
60°
41°
10
60°
42°
11
51°
39°
12
56°
43°
13
59°
48°
14
57°
46°
15
61°
46°
16
61°
48°
17
65°
50°
18
66°
48°
19
63°
50°
20
67°
50°
21
67°
45°
22
62°
42°
23
59°
41°
24
61°
42°
25
61°
44°
26
62°
43°
27
62°
43°
28
63°
44°
29
62°
44°
30
63°
49°
31
69°
50°
1
65°
48°
2
66°
50°
3
71°
54°
4
72°
54°
5
71°
55°
6
75°
57°
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 50° to 75°, with overnight lows between 36° and 57°. The average high for May is 62° with an average low of 46°. 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.
