S
M
T
W
T
F
S
26
44°
34°
27
49°
32°
28
54°
33°
29
64°
25°
30
59°
32°
1
67°
27°
2
78°
27°
3
75°
38°
4
70°
39°
5
47°
35°
6
52°
32°
7
73°
41°
8
75°
45°
9
74°
43°
10
76°
45°
11
78°
47°
12
85°
50°
13
84°
48°
14
81°
50°
15
83°
50°
16
73°
43°
17
74°
48°
18
78°
49°
19
68°
45°
20
76°
46°
21
68°
42°
22
69°
49°
23
74°
50°
24
68°
46°
25
68°
42°
26
69°
43°
27
70°
48°
28
68°
47°
29
69°
51°
30
70°
51°
31
71°
50°
1
72°
53°
2
80°
52°
3
83°
54°
4
83°
55°
5
81°
55°
6
81°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in McGrew
McGrew's May 2026 forecast shows daily high temperatures ranging from 47° to 85°, with overnight lows between 32° and 55°. The average high for May is 73° with an average low of 47°. 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 McGrew. See also: June | July | August.