S
M
T
W
T
F
S
26
76°
42°
27
74°
55°
28
64°
49°
29
61°
39°
30
58°
34°
1
56°
34°
2
60°
34°
3
73°
47°
4
83°
40°
5
56°
46°
6
57°
35°
7
60°
40°
8
68°
49°
9
79°
46°
10
69°
42°
11
71°
47°
12
68°
49°
13
68°
48°
14
74°
54°
15
75°
51°
16
74°
56°
17
78°
60°
18
80°
60°
19
79°
58°
20
86°
64°
21
70°
48°
22
68°
50°
23
69°
50°
24
71°
53°
25
71°
54°
26
72°
53°
27
73°
55°
28
74°
53°
29
76°
54°
30
79°
58°
31
81°
61°
1
81°
58°
2
79°
61°
3
82°
62°
4
83°
63°
5
83°
63°
6
80°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Coal Valley
Coal Valley's May 2026 forecast shows daily high temperatures ranging from 60° to 86°, with overnight lows between 40° and 64°. The average high for May is 75° with an average low of 54°. 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 Coal Valley. See also: June | July | August.
