S
M
T
W
T
F
S
30
82°
59°
31
79°
69°
1
88°
68°
2
73°
68°
3
85°
68°
4
84°
70°
5
79°
65°
6
77°
61°
7
77°
58°
8
81°
54°
9
84°
68°
10
83°
65°
11
78°
57°
12
76°
66°
13
81°
65°
14
80°
66°
15
82°
69°
16
82°
62°
17
76°
61°
18
75°
61°
19
68°
51°
20
68°
56°
21
69°
55°
22
71°
54°
23
71°
59°
24
70°
58°
25
67°
49°
26
67°
53°
27
75°
57°
28
75°
56°
29
70°
52°
30
73°
57°
1
72°
56°
2
70°
52°
3
70°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Christiana
Christiana's September 2026 forecast shows daily high temperatures ranging from 67° to 84°, with overnight lows between 49° and 69°. The average high for September is 74° 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 Christiana. See also: October | November | December.
