S
M
T
W
T
F
S
26
61°
39°
27
72°
36°
28
64°
36°
29
63°
48°
30
61°
46°
1
64°
39°
2
59°
45°
3
61°
43°
4
73°
37°
5
82°
45°
6
68°
54°
7
64°
45°
8
63°
39°
9
63°
46°
10
73°
48°
11
63°
45°
12
68°
39°
13
73°
46°
14
66°
48°
15
66°
46°
16
79°
59°
17
87°
59°
18
86°
64°
19
94°
65°
20
90°
50°
21
66°
47°
22
64°
45°
23
71°
52°
24
72°
56°
25
75°
56°
26
73°
55°
27
75°
54°
28
77°
55°
29
75°
51°
30
76°
56°
31
75°
55°
1
74°
55°
2
71°
54°
3
68°
56°
4
70°
57°
5
73°
55°
6
73°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Picatinny Arsenal
Picatinny Arsenal's May 2026 forecast shows daily high temperatures ranging from 64° to 94°, with overnight lows between 45° and 65°. The average high for May is 76° 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 Picatinny Arsenal. See also: June | July | August.