S
M
T
W
T
F
S
30
81°
66°
31
86°
70°
1
86°
66°
2
86°
64°
3
82°
68°
4
90°
73°
5
77°
70°
6
75°
66°
7
77°
64°
8
79°
64°
9
81°
59°
10
75°
55°
11
81°
57°
12
72°
55°
13
68°
48°
14
63°
45°
15
68°
54°
16
72°
50°
17
66°
59°
18
63°
59°
19
63°
57°
20
68°
55°
21
59°
50°
22
57°
45°
23
63°
50°
24
63°
54°
25
67°
52°
26
61°
56°
27
69°
53°
28
71°
53°
29
65°
50°
30
69°
49°
1
69°
51°
2
66°
40°
3
62°
46°
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 57° to 71°, with overnight lows between 40° and 56°. The average high for September is 65° with an average low of 50°. 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.
