S
M
T
W
T
F
S
30
98°
78°
31
97°
79°
1
97°
78°
2
100°
78°
3
100°
81°
4
91°
80°
5
97°
77°
6
98°
77°
7
98°
78°
8
100°
78°
9
98°
78°
10
98°
78°
11
100°
79°
12
100°
79°
13
100°
79°
14
100°
80°
15
101°
79°
16
98°
77°
17
98°
76°
18
90°
76°
19
92°
75°
20
94°
75°
21
99°
78°
22
97°
76°
23
97°
75°
24
95°
75°
25
97°
74°
26
93°
74°
27
97°
74°
28
97°
77°
29
93°
74°
30
91°
71°
1
92°
70°
2
87°
69°
3
88°
69°
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 87° to 97°, with overnight lows between 69° and 77°. The average high for September is 93° 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 Kirby. See also: October | November | December.
