S
M
T
W
T
F
S
26
58°
42°
27
69°
41°
28
69°
43°
29
65°
49°
30
N/A
1
66°
48°
2
60°
43°
3
59°
44°
4
68°
55°
5
76°
55°
6
65°
48°
7
62°
42°
8
59°
43°
9
61°
50°
10
64°
48°
11
67°
50°
12
68°
50°
13
69°
51°
14
67°
48°
15
67°
54°
16
68°
54°
17
68°
51°
18
69°
58°
19
76°
58°
20
74°
57°
21
70°
59°
22
77°
55°
23
69°
55°
24
72°
56°
25
71°
53°
26
71°
56°
27
69°
57°
28
71°
61°
29
78°
61°
30
77°
60°
31
77°
59°
1
73°
54°
2
69°
54°
3
70°
55°
4
73°
55°
5
72°
56°
6
73°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Passaic
Passaic's May 2026 forecast shows daily high temperatures ranging from 59° to 78°, with overnight lows between 42° and 61°. The average high for May is 69° with an average low of 53°. 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 Passaic. See also: June | July | August.
