S
M
T
W
T
F
S
26
33°
16°
27
35°
22°
28
41°
25°
29
44°
27°
30
58°
31°
1
67°
33°
2
57°
37°
3
63°
32°
4
48°
28°
5
47°
28°
6
52°
32°
7
60°
35°
8
56°
33°
9
54°
34°
10
59°
36°
11
58°
36°
12
57°
37°
13
63°
38°
14
56°
34°
15
57°
37°
16
61°
43°
17
58°
40°
18
65°
38°
19
58°
33°
20
58°
34°
21
59°
43°
22
63°
44°
23
60°
40°
24
61°
35°
25
67°
45°
26
70°
45°
27
71°
41°
28
60°
37°
29
59°
36°
30
61°
40°
31
65°
47°
1
61°
47°
2
62°
48°
3
63°
47°
4
64°
46°
5
62°
48°
6
63°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Macdowall
Macdowall's May 2026 forecast shows daily high temperatures ranging from 47° to 71°, with overnight lows between 28° and 48°. The average high for May is 60° with an average low of 39°. 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 Macdowall. See also: June | July | August.