S
M
T
W
T
F
S
30
78°
65°
31
84°
72°
1
84°
71°
2
93°
70°
3
93°
68°
4
N/A
5
78°
56°
6
79°
58°
7
80°
56°
8
83°
66°
9
90°
61°
10
77°
54°
11
75°
55°
12
80°
58°
13
82°
58°
14
77°
56°
15
78°
55°
16
79°
56°
17
80°
51°
18
73°
55°
19
79°
56°
20
79°
56°
21
78°
55°
22
77°
54°
23
75°
52°
24
72°
54°
25
77°
55°
26
75°
51°
27
66°
47°
28
65°
45°
29
66°
46°
30
65°
41°
1
63°
43°
2
64°
47°
3
70°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Delta
Delta's September 2026 forecast shows daily high temperatures ranging from 63° to 90°, with overnight lows between 41° and 66°. The average high for September is 75° with an average low of 53°. 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 Delta. See also: October | November | December.
