S
M
T
W
T
F
S
26
69°
37°
27
73°
39°
28
71°
46°
29
75°
44°
30
79°
45°
1
81°
44°
2
84°
54°
3
91°
55°
4
89°
53°
5
85°
52°
6
86°
52°
7
80°
47°
8
73°
47°
9
79°
50°
10
81°
53°
11
80°
52°
12
84°
54°
13
80°
54°
14
82°
53°
15
77°
49°
16
73°
47°
17
71°
47°
18
66°
43°
19
66°
42°
20
67°
43°
21
72°
51°
22
78°
52°
23
71°
46°
24
78°
54°
25
79°
50°
26
75°
51°
27
78°
53°
28
78°
54°
29
79°
53°
30
80°
54°
31
81°
55°
1
82°
55°
2
81°
54°
3
81°
54°
4
80°
51°
5
79°
51°
6
78°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Monitor
Monitor's May 2026 forecast shows daily high temperatures ranging from 66° to 91°, with overnight lows between 42° and 55°. The average high for May is 78° with an average low of 51°. 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 Monitor. See also: June | July | August.
