S
M
T
W
T
F
S
30
100°
79°
31
100°
77°
1
98°
80°
2
99°
75°
3
90°
74°
4
98°
75°
5
98°
78°
6
98°
75°
7
100°
77°
8
101°
77°
9
99°
78°
10
99°
77°
11
98°
79°
12
101°
77°
13
99°
78°
14
98°
76°
15
96°
71°
16
92°
72°
17
90°
69°
18
90°
70°
19
89°
66°
20
87°
66°
21
86°
64°
22
90°
70°
23
90°
69°
24
88°
68°
25
81°
68°
26
85°
67°
27
85°
67°
28
87°
66°
29
86°
67°
30
85°
59°
1
77°
55°
2
76°
56°
3
74°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sachse
Sachse's September 2026 forecast shows daily high temperatures ranging from 74° to 101°, with overnight lows between 55° and 79°. The average high for September is 90° with an average low of 69°. 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 Sachse. See also: October | November | December.
