S
M
T
W
T
F
S
30
95°
77°
31
94°
73°
1
95°
72°
2
95°
72°
3
93°
72°
4
93°
73°
5
93°
70°
6
91°
72°
7
95°
73°
8
91°
73°
9
90°
73°
10
86°
66°
11
86°
63°
12
87°
60°
13
87°
58°
14
88°
60°
15
90°
60°
16
89°
64°
17
84°
66°
18
82°
59°
19
83°
59°
20
83°
58°
21
82°
59°
22
82°
59°
23
81°
58°
24
81°
58°
25
81°
59°
26
76°
58°
27
78°
55°
28
76°
53°
29
78°
54°
30
77°
52°
1
73°
52°
2
74°
51°
3
73°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Civita Castellana
Civita Castellana's September 2026 forecast shows daily high temperatures ranging from 73° to 90°, with overnight lows between 51° and 66°. The average high for September is 81° with an average low of 58°. 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 Civita Castellana. See also: October | November | December.
