S
M
T
W
T
F
S
30
69°
52°
31
75°
52°
1
76°
48°
2
69°
47°
3
68°
48°
4
72°
55°
5
73°
55°
6
76°
49°
7
70°
50°
8
69°
53°
9
67°
55°
10
68°
54°
11
69°
52°
12
70°
53°
13
70°
52°
14
65°
46°
15
64°
45°
16
64°
43°
17
65°
50°
18
64°
50°
19
68°
52°
20
71°
51°
21
69°
46°
22
64°
42°
23
62°
48°
24
61°
46°
25
66°
42°
26
60°
47°
27
63°
46°
28
Hist. Avg.
65°
44°
29
Hist. Avg.
65°
44°
30
Hist. Avg.
64°
43°
1
Hist. Avg.
64°
43°
2
Hist. Avg.
64°
42°
3
Hist. Avg.
63°
42°
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 60° to 76°, with overnight lows between 42° and 55°. The average high for September is 68° with an average low of 49°. 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.
