S
M
T
W
T
F
S
26
51°
21°
27
48°
30°
28
42°
24°
29
47°
26°
30
42°
24°
1
61°
23°
2
69°
33°
3
74°
28°
4
46°
30°
5
37°
27°
6
49°
26°
7
57°
18°
8
63°
34°
9
52°
31°
10
55°
24°
11
71°
32°
12
70°
42°
13
78°
36°
14
78°
56°
15
70°
39°
16
52°
31°
17
48°
30°
18
42°
35°
19
48°
29°
20
69°
28°
21
70°
45°
22
69°
47°
23
56°
42°
24
78°
52°
25
81°
50°
26
86°
53°
27
86°
59°
28
87°
57°
29
83°
57°
30
78°
56°
31
76°
55°
1
76°
53°
2
74°
53°
3
73°
51°
4
74°
50°
5
73°
46°
6
73°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Glenboro
Glenboro's May 2026 forecast shows daily high temperatures ranging from 56° to 87°, with overnight lows between 42° and 59°. The average high for May is 77° with an average low of 52°. 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 Glenboro. See also: June | July | August.
