S
M
T
W
T
F
S
26
63°
48°
27
63°
45°
28
67°
46°
29
66°
48°
30
63°
47°
1
63°
46°
2
64°
48°
3
63°
47°
4
62°
44°
5
62°
44°
6
63°
45°
7
65°
46°
8
70°
51°
9
66°
53°
10
66°
50°
11
67°
46°
12
64°
46°
13
63°
47°
14
64°
46°
15
65°
48°
16
66°
47°
17
67°
52°
18
68°
53°
19
69°
48°
20
67°
48°
21
69°
54°
22
68°
54°
23
70°
58°
24
75°
59°
25
78°
59°
26
77°
58°
27
76°
60°
28
79°
59°
29
81°
58°
30
81°
55°
31
76°
54°
1
73°
53°
2
72°
57°
3
74°
60°
4
77°
61°
5
76°
61°
6
77°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Pomona
Pomona's May 2026 forecast shows daily high temperatures ranging from 62° to 81°, with overnight lows between 44° and 61°. The average high for May is 69° 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 Pomona. See also: June | July | August.
