S
M
T
W
T
F
S
30
78°
56°
31
79°
60°
1
81°
61°
2
82°
64°
3
82°
54°
4
80°
55°
5
78°
61°
6
81°
56°
7
75°
61°
8
80°
63°
9
82°
62°
10
83°
62°
11
82°
62°
12
79°
61°
13
80°
61°
14
80°
55°
15
76°
55°
16
78°
57°
17
76°
56°
18
74°
54°
19
73°
49°
20
70°
51°
21
70°
48°
22
71°
46°
23
66°
49°
24
66°
54°
25
65°
56°
26
71°
57°
27
69°
56°
28
69°
53°
29
70°
48°
30
71°
42°
1
63°
41°
2
60°
41°
3
59°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fountain City
Fountain City's September 2026 forecast shows daily high temperatures ranging from 59° to 83°, with overnight lows between 40° and 64°. The average high for September is 74° 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 City. See also: October | November | December.
