S
M
T
W
T
F
S
30
82°
66°
31
84°
57°
1
84°
57°
2
76°
56°
3
77°
62°
4
78°
64°
5
84°
55°
6
82°
54°
7
75°
55°
8
76°
62°
9
78°
61°
10
80°
60°
11
75°
58°
12
74°
55°
13
74°
52°
14
73°
52°
15
73°
56°
16
74°
59°
17
74°
59°
18
80°
60°
19
81°
57°
20
77°
58°
21
79°
56°
22
75°
51°
23
71°
50°
24
70°
49°
25
69°
49°
26
69°
48°
27
77°
57°
28
69°
56°
29
78°
48°
30
Hist. Avg.
71°
48°
1
Hist. Avg.
71°
47°
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
*Temporarily Unavailable
September Weather in Davenport
Davenport's September 2026 forecast shows daily high temperatures ranging from 69° to 84°, with overnight lows between 48° and 66°. The average high for September is 76° with an average low of 56°. 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.
