S
M
T
W
T
F
S
26
29°
19°
27
44°
14°
28
51°
22°
29
59°
28°
30
69°
30°
1
66°
37°
2
68°
31°
3
59°
39°
4
43°
28°
5
50°
22°
6
62°
28°
7
69°
42°
8
59°
39°
9
62°
30°
10
76°
48°
11
67°
47°
12
72°
46°
13
76°
46°
14
57°
44°
15
44°
33°
16
49°
33°
17
54°
34°
18
N/A
19
62°
39°
20
60°
37°
21
67°
47°
22
65°
42°
23
64°
41°
24
66°
43°
25
64°
43°
26
62°
41°
27
66°
46°
28
65°
45°
29
65°
44°
30
66°
43°
31
68°
45°
1
67°
42°
2
71°
48°
3
72°
48°
4
70°
47°
5
62°
47°
6
63°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Heart Lake 167A
Heart Lake 167A's May 2026 forecast shows daily high temperatures ranging from 60° to 72°, with overnight lows between 37° and 48°. The average high for May is 66° with an average low of 44°. 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 Heart Lake 167A. See also: June | July | August.