S
M
T
W
T
F
S
30
101°
79°
31
101°
75°
1
101°
78°
2
99°
74°
3
89°
76°
4
99°
75°
5
101°
76°
6
101°
74°
7
100°
77°
8
101°
77°
9
99°
77°
10
94°
74°
11
99°
75°
12
101°
75°
13
100°
72°
14
97°
71°
15
91°
68°
16
92°
68°
17
91°
69°
18
91°
66°
19
90°
65°
20
84°
62°
21
90°
69°
22
90°
68°
23
89°
67°
24
87°
67°
25
79°
66°
26
83°
66°
27
84°
65°
28
86°
66°
29
83°
65°
30
83°
56°
1
75°
53°
2
74°
52°
3
73°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Preston
Preston's September 2026 forecast shows daily high temperatures ranging from 73° to 101°, with overnight lows between 51° and 77°. The average high for September is 89° with an average low of 67°. 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 Preston. See also: October | November | December.
