S
M
T
W
T
F
S
26
30°
19°
27
45°
19°
28
52°
23°
29
63°
30°
30
73°
39°
1
66°
43°
2
72°
34°
3
64°
41°
4
54°
32°
5
52°
23°
6
66°
34°
7
70°
43°
8
64°
37°
9
66°
45°
10
72°
48°
11
66°
48°
12
70°
46°
13
68°
43°
14
61°
45°
15
59°
34°
16
48°
28°
17
54°
27°
18
61°
27°
19
64°
34°
20
55°
36°
21
68°
34°
22
70°
48°
23
75°
46°
24
68°
46°
25
79°
43°
26
75°
46°
27
77°
57°
28
84°
52°
29
86°
55°
30
70°
52°
31
53°
45°
1
50°
44°
2
50°
44°
3
62°
44°
4
73°
50°
5
66°
47°
6
62°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Onoway
Onoway's May 2026 forecast shows daily high temperatures ranging from 50° to 73°, with overnight lows between 44° and 50°. The average high for May is 59° 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 Onoway. See also: June | July | August.
