S
M
T
W
T
F
S
26
63°
45°
27
55°
43°
28
55°
39°
29
52°
34°
30
50°
32°
1
52°
34°
2
63°
30°
3
70°
46°
4
63°
41°
5
50°
34°
6
43°
28°
7
55°
28°
8
70°
36°
9
59°
37°
10
57°
34°
11
64°
34°
12
70°
50°
13
68°
43°
14
77°
43°
15
86°
54°
16
77°
46°
17
68°
52°
18
66°
52°
19
54°
41°
20
59°
34°
21
63°
39°
22
64°
46°
23
69°
47°
24
81°
58°
25
83°
61°
26
88°
61°
27
85°
59°
28
82°
57°
29
79°
54°
30
77°
53°
31
75°
51°
1
77°
53°
2
76°
54°
3
78°
53°
4
78°
56°
5
74°
51°
6
70°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in River Falls
River Falls's May 2026 forecast shows daily high temperatures ranging from 69° to 88°, with overnight lows between 47° and 61°. The average high for May is 78° with an average low of 55°. 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 Falls. See also: June | July | August.
