S
M
T
W
T
F
S
30
77°
57°
31
76°
58°
1
76°
56°
2
77°
54°
3
76°
56°
4
78°
61°
5
77°
62°
6
76°
58°
7
78°
60°
8
77°
62°
9
76°
55°
10
80°
54°
11
75°
55°
12
79°
58°
13
77°
53°
14
74°
60°
15
80°
61°
16
82°
61°
17
80°
59°
18
80°
50°
19
74°
49°
20
70°
50°
21
71°
51°
22
75°
58°
23
78°
58°
24
77°
56°
25
78°
47°
26
76°
46°
27
68°
47°
28
66°
46°
29
67°
47°
30
69°
53°
1
66°
53°
2
Hist. Avg.
70°
47°
3
Hist. Avg.
70°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Davenport
Davenport's September 2026 forecast shows daily high temperatures ranging from 66° to 82°, with overnight lows between 46° and 62°. The average high for September is 75° with an average low of 55°. 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.
