S
M
T
W
T
F
S
26
60°
45°
27
57°
42°
28
62°
41°
29
57°
50°
30
54°
51°
1
61°
47°
2
57°
48°
3
60°
47°
4
78°
46°
5
56°
43°
6
52°
38°
7
58°
40°
8
56°
47°
9
52°
47°
10
51°
44°
11
50°
42°
12
51°
44°
13
52°
43°
14
53°
44°
15
53°
45°
16
52°
44°
17
54°
43°
18
51°
43°
19
51°
42°
20
52°
42°
21
55°
45°
22
52°
45°
23
53°
46°
24
53°
45°
25
52°
43°
26
53°
43°
27
57°
46°
28
58°
46°
29
59°
47°
30
59°
46°
31
58°
47°
1
58°
47°
2
54°
46°
3
53°
46°
4
54°
45°
5
53°
45°
6
54°
46°
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 50° to 78°, with overnight lows between 38° and 47°. The average high for May is 55° 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 Waterfall. See also: June | July | August.
