S
M
T
W
T
F
S
26
63°
39°
27
72°
39°
28
66°
43°
29
64°
48°
30
59°
46°
1
63°
39°
2
57°
46°
3
59°
39°
4
72°
45°
5
82°
54°
6
70°
52°
7
61°
48°
8
59°
41°
9
55°
45°
10
68°
45°
11
59°
43°
12
66°
37°
13
68°
48°
14
64°
46°
15
66°
46°
16
79°
48°
17
88°
63°
18
93°
64°
19
93°
70°
20
88°
63°
21
63°
52°
22
66°
48°
23
57°
48°
24
57°
54°
25
75°
57°
26
82°
60°
27
85°
62°
28
76°
53°
29
72°
51°
30
67°
51°
31
68°
52°
1
74°
53°
2
70°
53°
3
76°
57°
4
77°
58°
5
79°
59°
6
78°
54°
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 57° to 85°, with overnight lows between 51° and 62°. The average high for May is 74° with an average low of 55°. 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.
