S
M
T
W
T
F
S
26
64°
53°
27
65°
54°
28
72°
52°
29
73°
53°
30
73°
55°
1
75°
57°
2
71°
59°
3
71°
57°
4
72°
56°
5
72°
55°
6
76°
57°
7
78°
60°
8
78°
61°
9
76°
60°
10
77°
59°
11
80°
60°
12
77°
61°
13
77°
62°
14
74°
61°
15
75°
58°
16
76°
60°
17
78°
62°
18
78°
62°
19
79°
61°
20
78°
62°
21
78°
62°
22
77°
61°
23
79°
63°
24
79°
63°
25
78°
62°
26
78°
62°
27
77°
61°
28
72°
60°
29
70°
59°
30
71°
59°
31
72°
62°
1
73°
63°
2
76°
62°
3
75°
62°
4
74°
61°
5
73°
60°
6
72°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Downey
Downey's May 2026 forecast shows daily high temperatures ranging from 70° to 80°, with overnight lows between 55° and 63°. The average high for May is 75° 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 Downey. See also: June | July | August.
