S
M
T
W
T
F
S
26
48°
40°
27
49°
42°
28
49°
42°
29
50°
41°
30
50°
42°
1
49°
42°
2
50°
41°
3
49°
42°
4
49°
41°
5
50°
40°
6
49°
40°
7
50°
41°
8
50°
43°
9
51°
42°
10
50°
41°
11
50°
43°
12
51°
42°
13
51°
42°
14
52°
40°
15
50°
39°
16
51°
41°
17
52°
43°
18
56°
44°
19
57°
43°
20
57°
43°
21
58°
41°
22
57°
40°
23
52°
41°
24
54°
42°
25
57°
45°
26
56°
45°
27
58°
42°
28
54°
41°
29
53°
42°
30
56°
43°
31
58°
48°
1
59°
48°
2
60°
47°
3
59°
48°
4
60°
48°
5
60°
47°
6
58°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Waterfall
Waterfall's May 2026 forecast shows daily high temperatures ranging from 48° to 60°, with overnight lows between 39° and 48°. The average high for May is 53° with an average low of 43°. 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 Waterfall. See also: June | July | August.
