S
M
T
W
T
F
S
26
57°
42°
27
72°
37°
28
60°
49°
29
60°
54°
30
67°
44°
1
67°
35°
2
60°
42°
3
63°
38°
4
77°
37°
5
85°
50°
6
72°
57°
7
68°
48°
8
73°
40°
9
71°
47°
10
80°
46°
11
64°
41°
12
72°
37°
13
73°
53°
14
61°
51°
15
73°
51°
16
84°
44°
17
88°
56°
18
97°
59°
19
97°
64°
20
95°
68°
21
70°
53°
22
61°
50°
23
54°
49°
24
64°
50°
25
73°
61°
26
75°
66°
27
75°
63°
28
79°
54°
29
77°
53°
30
67°
49°
31
69°
51°
1
72°
52°
2
68°
55°
3
75°
57°
4
76°
60°
5
78°
61°
6
79°
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 67° to 79°, with overnight lows between 49° and 66°. The average high for May is 74° with an average low of 57°. 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.
