S
M
T
W
T
F
S
26
72°
53°
27
72°
51°
28
60°
44°
29
60°
41°
30
65°
40°
1
65°
35°
2
65°
36°
3
81°
48°
4
82°
51°
5
62°
47°
6
60°
45°
7
72°
41°
8
67°
48°
9
83°
47°
10
69°
48°
11
79°
42°
12
83°
55°
13
79°
46°
14
80°
49°
15
89°
65°
16
90°
65°
17
86°
69°
18
86°
53°
19
68°
49°
20
68°
52°
21
68°
52°
22
74°
59°
23
80°
64°
24
83°
63°
25
81°
59°
26
80°
60°
27
81°
62°
28
80°
63°
29
81°
59°
30
82°
60°
31
84°
66°
1
84°
65°
2
83°
64°
3
76°
60°
4
77°
60°
5
83°
66°
6
83°
66°
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 68° to 86°, with overnight lows between 49° and 69°. The average high for May is 79° with an average low of 61°. 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.
