S
M
T
W
T
F
S
26
65°
53°
27
66°
53°
28
74°
49°
29
75°
51°
30
75°
54°
1
78°
57°
2
76°
55°
3
67°
57°
4
67°
53°
5
65°
54°
6
75°
51°
7
79°
54°
8
78°
58°
9
81°
59°
10
83°
59°
11
88°
57°
12
71°
57°
13
75°
57°
14
74°
54°
15
71°
58°
16
72°
61°
17
67°
60°
18
79°
59°
19
86°
53°
20
89°
58°
21
85°
59°
22
82°
58°
23
81°
58°
24
80°
58°
25
75°
61°
26
73°
59°
27
74°
60°
28
77°
62°
29
79°
62°
30
78°
61°
31
79°
62°
1
81°
61°
2
80°
60°
3
78°
58°
4
76°
57°
5
80°
62°
6
83°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Monrovia
Monrovia's May 2026 forecast shows daily high temperatures ranging from 73° to 89°, with overnight lows between 57° and 62°. The average high for May is 79° with an average low of 60°. 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 Monrovia. See also: June | July | August.
