S
M
T
W
T
F
S
26
N/A
27
N/A
28
N/A
29
N/A
30
N/A
1
N/A
2
N/A
3
N/A
4
N/A
5
N/A
6
N/A
7
N/A
8
N/A
9
76°
45°
10
65°
42°
11
82°
53°
12
85°
52°
13
82°
54°
14
83°
51°
15
84°
53°
16
78°
52°
17
85°
53°
18
78°
53°
19
82°
52°
20
86°
56°
21
85°
55°
22
67°
49°
23
76°
48°
24
77°
49°
25
77°
50°
26
76°
49°
27
77°
48°
28
73°
43°
29
70°
50°
30
69°
51°
31
70°
48°
1
72°
48°
2
70°
49°
3
71°
47°
4
76°
51°
5
80°
53°
6
80°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Fountain
Fountain's May 2026 forecast shows daily high temperatures ranging from 65° to 86°, with overnight lows between 42° and 56°. The average high for May is 77° with an average low of 50°. 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 Fountain. See also: June | July | August.