S
M
T
W
T
F
S
30
79°
70°
31
90°
75°
1
94°
71°
2
94°
73°
3
94°
75°
4
95°
75°
5
91°
72°
6
84°
66°
7
82°
58°
8
88°
66°
9
78°
68°
10
81°
57°
11
82°
56°
12
81°
58°
13
69°
50°
14
75°
49°
15
82°
65°
16
69°
63°
17
87°
66°
18
76°
64°
19
72°
65°
20
69°
59°
21
63°
56°
22
N/A
23
70°
49°
24
72°
59°
25
66°
60°
26
72°
52°
27
74°
54°
28
78°
49°
29
82°
48°
30
68°
64°
1
71°
50°
2
68°
43°
3
69°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Davenport
Davenport's September 2026 forecast shows daily high temperatures ranging from 68° to 71°, with overnight lows between 43° and 64°. The average high for September is 69° with an average low of 51°. 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 Davenport. See also: October | November | December.
