S
M
T
W
T
F
S
30
82°
59°
31
82°
59°
1
81°
58°
2
81°
59°
3
82°
60°
4
83°
59°
5
82°
58°
6
81°
59°
7
83°
58°
8
79°
56°
9
79°
56°
10
80°
55°
11
81°
56°
12
76°
54°
13
71°
48°
14
68°
44°
15
67°
52°
16
67°
49°
17
68°
46°
18
70°
46°
19
74°
50°
20
76°
51°
21
75°
51°
22
69°
44°
23
76°
40°
24
69°
48°
25
69°
49°
26
70°
43°
27
72°
35°
28
66°
36°
29
65°
45°
30
66°
46°
1
63°
45°
2
64°
49°
3
70°
48°
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 63° to 83°, with overnight lows between 35° and 60°. The average high for September is 74° with an average low of 51°. 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.
