S
M
T
W
T
F
S
30
101°
78°
31
101°
80°
1
100°
80°
2
100°
79°
3
93°
77°
4
100°
78°
5
100°
78°
6
100°
78°
7
101°
79°
8
102°
82°
9
101°
82°
10
100°
78°
11
98°
78°
12
101°
75°
13
101°
79°
14
100°
79°
15
101°
79°
16
100°
79°
17
98°
77°
18
99°
79°
19
98°
77°
20
91°
72°
21
89°
69°
22
89°
69°
23
90°
72°
24
92°
71°
25
91°
72°
26
86°
66°
27
90°
72°
28
87°
71°
29
88°
70°
30
89°
71°
1
89°
71°
2
88°
70°
3
88°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Irving
Irving's September 2026 forecast shows daily high temperatures ranging from 86° to 101°, with overnight lows between 66° and 79°. 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 Irving. See also: October | November | December.
