S
M
T
W
T
F
S
26
74°
59°
27
73°
55°
28
70°
55°
29
71°
57°
30
68°
55°
1
67°
53°
2
67°
53°
3
68°
52°
4
68°
54°
5
72°
56°
6
76°
58°
7
77°
60°
8
77°
60°
9
76°
59°
10
77°
60°
11
76°
58°
12
73°
56°
13
70°
54°
14
76°
59°
15
77°
60°
16
76°
57°
17
69°
55°
18
69°
55°
19
72°
57°
20
76°
59°
21
74°
57°
22
69°
55°
23
69°
56°
24
71°
60°
25
71°
54°
26
71°
55°
27
72°
56°
28
75°
60°
29
75°
61°
30
76°
60°
31
77°
61°
1
77°
63°
2
76°
62°
3
77°
62°
4
76°
61°
5
77°
62°
6
77°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Downey-Norwalk
Downey-Norwalk's May 2026 forecast shows daily high temperatures ranging from 67° to 77°, with overnight lows between 52° and 63°. The average high for May is 73° with an average low of 58°. 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-Norwalk. See also: June | July | August.
