S
M
T
W
T
F
S
30
93°
68°
31
97°
70°
1
98°
77°
2
98°
77°
3
100°
79°
4
97°
80°
5
97°
78°
6
94°
69°
7
92°
68°
8
95°
67°
9
94°
68°
10
94°
69°
11
92°
63°
12
88°
60°
13
87°
61°
14
84°
58°
15
80°
62°
16
79°
62°
17
81°
61°
18
83°
62°
19
85°
62°
20
82°
61°
21
81°
60°
22
83°
60°
23
85°
59°
24
85°
59°
25
84°
60°
26
85°
58°
27
84°
59°
28
84°
59°
29
83°
58°
30
84°
58°
1
83°
57°
2
82°
57°
3
82°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Dart
Dart's September 2026 forecast shows daily high temperatures ranging from 79° to 100°, with overnight lows between 56° and 80°. The average high for September is 87° with an average low of 64°. 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 Dart. See also: October | November | December.
