S
M
T
W
T
F
S
26
64°
30°
27
74°
32°
28
58°
42°
29
47°
33°
30
44°
32°
1
42°
31°
2
44°
29°
3
53°
28°
4
65°
41°
5
52°
36°
6
51°
31°
7
42°
33°
8
51°
33°
9
58°
33°
10
46°
32°
11
47°
29°
12
53°
25°
13
44°
38°
14
62°
40°
15
66°
38°
16
65°
49°
17
67°
46°
18
80°
50°
19
71°
58°
20
58°
35°
21
57°
29°
22
67°
32°
23
N/A
24
57°
49°
25
76°
51°
26
79°
51°
27
72°
43°
28
69°
42°
29
64°
44°
30
65°
44°
31
66°
48°
1
70°
49°
2
68°
48°
3
71°
50°
4
72°
49°
5
67°
48°
6
70°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in South River
South River's May 2026 forecast shows daily high temperatures ranging from 57° to 79°, with overnight lows between 42° and 51°. The average high for May is 69° 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 South River. See also: June | July | August.
