S
M
T
W
T
F
S
26
65°
33°
27
72°
35°
28
57°
36°
29
46°
32°
30
44°
33°
1
40°
29°
2
46°
26°
3
54°
27°
4
62°
38°
5
52°
35°
6
50°
34°
7
47°
33°
8
50°
35°
9
54°
38°
10
53°
34°
11
51°
36°
12
51°
39°
13
52°
40°
14
59°
42°
15
61°
44°
16
57°
40°
17
58°
42°
18
60°
43°
19
64°
44°
20
57°
41°
21
58°
42°
22
59°
41°
23
63°
44°
24
67°
46°
25
69°
49°
26
69°
47°
27
63°
48°
28
71°
48°
29
69°
49°
30
72°
51°
31
72°
52°
1
71°
50°
2
68°
51°
3
69°
53°
4
74°
54°
5
74°
53°
6
65°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in River Valley
River Valley's May 2026 forecast shows daily high temperatures ranging from 47° to 74°, with overnight lows between 33° and 54°. The average high for May is 62° with an average low of 44°. 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 Valley. See also: June | July | August.
