S
M
T
W
T
F
S
26
53°
29°
27
50°
34°
28
42°
30°
29
42°
31°
30
45°
31°
1
58°
29°
2
66°
40°
3
72°
40°
4
48°
30°
5
39°
28°
6
45°
29°
7
54°
28°
8
58°
39°
9
51°
36°
10
51°
35°
11
63°
34°
12
65°
45°
13
78°
43°
14
79°
59°
15
68°
40°
16
52°
36°
17
54°
40°
18
46°
37°
19
45°
35°
20
57°
42°
21
66°
46°
22
69°
50°
23
73°
53°
24
70°
49°
25
68°
53°
26
69°
51°
27
65°
39°
28
65°
47°
29
63°
48°
30
66°
46°
31
62°
43°
1
63°
45°
2
66°
51°
3
70°
52°
4
73°
52°
5
71°
53°
6
71°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in River Park South
River Park South's May 2026 forecast shows daily high temperatures ranging from 45° to 79°, with overnight lows between 35° and 59°. The average high for May is 65° with an average low of 47°. 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 River Park South. See also: June | July | August.