S
M
T
W
T
F
S
30
89°
63°
31
92°
65°
1
92°
68°
2
91°
68°
3
92°
67°
4
92°
68°
5
90°
68°
6
91°
65°
7
90°
61°
8
84°
66°
9
83°
67°
10
86°
66°
11
89°
65°
12
89°
66°
13
90°
66°
14
90°
59°
15
88°
57°
16
80°
55°
17
80°
56°
18
81°
59°
19
83°
55°
20
79°
55°
21
78°
56°
22
79°
57°
23
80°
61°
24
85°
62°
25
85°
61°
26
86°
61°
27
87°
58°
28
84°
57°
29
83°
56°
30
84°
56°
1
82°
55°
2
85°
57°
3
76°
49°
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 76° to 92°, with overnight lows between 49° and 68°. The average high for September is 86° with an average low of 61°. 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.
