S
M
T
W
T
F
S
26
83°
58°
27
85°
60°
28
83°
63°
29
87°
64°
30
78°
63°
1
63°
55°
2
71°
47°
3
75°
46°
4
79°
50°
5
81°
59°
6
82°
64°
7
77°
51°
8
73°
52°
9
75°
56°
10
79°
58°
11
80°
60°
12
84°
58°
13
83°
59°
14
82°
58°
15
85°
62°
16
85°
62°
17
86°
61°
18
86°
63°
19
85°
63°
20
86°
64°
21
86°
64°
22
86°
64°
23
84°
65°
24
82°
64°
25
87°
65°
26
83°
66°
27
82°
65°
28
83°
66°
29
83°
66°
30
84°
65°
31
86°
66°
1
86°
67°
2
87°
67°
3
88°
68°
4
89°
68°
5
87°
66°
6
85°
67°
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 63° to 89°, with overnight lows between 46° and 68°. The average high for May is 82° with an average low of 61°. 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.
