S
M
T
W
T
F
S
30
91°
74°
31
94°
75°
1
94°
75°
2
93°
74°
3
92°
75°
4
92°
75°
5
91°
74°
6
91°
74°
7
92°
73°
8
92°
73°
9
93°
74°
10
93°
73°
11
90°
72°
12
90°
73°
13
92°
74°
14
93°
74°
15
92°
71°
16
89°
72°
17
90°
73°
18
92°
72°
19
91°
72°
20
90°
73°
21
90°
74°
22
89°
74°
23
88°
73°
24
88°
71°
25
89°
70°
26
88°
71°
27
88°
72°
28
89°
72°
29
88°
70°
30
88°
72°
1
89°
70°
2
88°
69°
3
89°
71°
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 88° to 94°, with overnight lows between 69° and 75°. The average high for September is 91° with an average low of 73°. 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.
