S
M
T
W
T
F
S
26
58°
42°
27
69°
43°
28
66°
46°
29
62°
50°
30
63°
42°
1
61°
41°
2
57°
39°
3
56°
40°
4
60°
45°
5
63°
48°
6
65°
46°
7
64°
48°
8
62°
47°
9
62°
46°
10
63°
47°
11
64°
46°
12
65°
49°
13
65°
47°
14
66°
45°
15
64°
45°
16
62°
46°
17
62°
44°
18
64°
45°
19
70°
51°
20
69°
47°
21
66°
46°
22
66°
47°
23
68°
46°
24
67°
48°
25
74°
55°
26
73°
48°
27
67°
48°
28
68°
48°
29
71°
53°
30
77°
57°
31
78°
56°
1
77°
57°
2
79°
59°
3
80°
59°
4
81°
58°
5
80°
52°
6
72°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Boonton
Boonton's May 2026 forecast shows daily high temperatures ranging from 56° to 81°, with overnight lows between 39° and 59°. The average high for May is 67° with an average low of 48°. 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 Boonton. See also: June | July | August.
