S
M
T
W
T
F
S
30
76°
48°
31
76°
47°
1
75°
44°
2
75°
47°
3
81°
48°
4
82°
48°
5
78°
47°
6
76°
47°
7
80°
46°
8
83°
47°
9
82°
47°
10
82°
46°
11
84°
44°
12
81°
47°
13
83°
46°
14
84°
43°
15
81°
41°
16
72°
39°
17
70°
42°
18
78°
41°
19
78°
43°
20
79°
43°
21
80°
42°
22
80°
43°
23
78°
42°
24
78°
42°
25
79°
33°
26
74°
29°
27
60°
32°
28
63°
35°
29
71°
34°
30
73°
31°
1
72°
23°
2
60°
30°
3
63°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kirby
Kirby's September 2026 forecast shows daily high temperatures ranging from 60° to 84°, with overnight lows between 23° and 48°. The average high for September is 76° with an average low of 41°. 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 Kirby. See also: October | November | December.
