S
M
T
W
T
F
S
30
81°
66°
31
86°
70°
1
86°
66°
2
86°
64°
3
82°
68°
4
90°
73°
5
77°
70°
6
75°
66°
7
77°
64°
8
79°
64°
9
81°
59°
10
75°
55°
11
81°
57°
12
72°
55°
13
68°
48°
14
62°
61°
15
70°
50°
16
68°
61°
17
72°
61°
18
70°
64°
19
71°
61°
20
66°
54°
21
67°
53°
22
68°
52°
23
70°
52°
24
67°
56°
25
69°
58°
26
74°
54°
27
73°
51°
28
70°
49°
29
68°
48°
30
70°
47°
1
69°
47°
2
66°
46°
3
68°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fountain
Fountain's September 2026 forecast shows daily high temperatures ranging from 62° to 74°, with overnight lows between 46° and 64°. The average high for September is 69° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Fountain. See also: October | November | December.
