S
M
T
W
T
F
S
26
58°
38°
27
68°
42°
28
67°
47°
29
60°
50°
30
60°
39°
1
60°
38°
2
58°
36°
3
57°
38°
4
60°
42°
5
65°
44°
6
65°
43°
7
64°
45°
8
63°
44°
9
64°
44°
10
65°
45°
11
65°
45°
12
66°
48°
13
66°
44°
14
65°
42°
15
64°
42°
16
62°
43°
17
63°
42°
18
65°
42°
19
71°
49°
20
69°
45°
21
67°
44°
22
68°
43°
23
67°
44°
24
68°
47°
25
76°
53°
26
73°
46°
27
68°
46°
28
68°
47°
29
71°
51°
30
78°
54°
31
78°
55°
1
77°
55°
2
79°
57°
3
80°
57°
4
80°
56°
5
79°
50°
6
72°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Raritan
Raritan's May 2026 forecast shows daily high temperatures ranging from 57° to 80°, with overnight lows between 36° and 57°. The average high for May is 68° with an average low of 46°. 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 Raritan. See also: June | July | August.
