S
M
T
W
T
F
S
30
67°
53°
31
68°
54°
1
66°
54°
2
70°
55°
3
68°
55°
4
68°
54°
5
65°
54°
6
64°
53°
7
67°
50°
8
64°
56°
9
64°
51°
10
67°
49°
11
64°
55°
12
63°
54°
13
63°
55°
14
64°
54°
15
67°
53°
16
67°
50°
17
68°
54°
18
68°
54°
19
Hist. Avg.
64°
49°
20
Hist. Avg.
64°
49°
21
Hist. Avg.
64°
49°
22
Hist. Avg.
63°
49°
23
Hist. Avg.
63°
49°
24
Hist. Avg.
63°
49°
25
Hist. Avg.
63°
48°
26
Hist. Avg.
63°
48°
27
Hist. Avg.
62°
48°
28
Hist. Avg.
62°
48°
29
Hist. Avg.
62°
48°
30
Hist. Avg.
62°
48°
1
Hist. Avg.
61°
47°
2
Hist. Avg.
61°
47°
3
Hist. Avg.
61°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Preston
Preston's September 2026 forecast shows daily high temperatures ranging from 63° to 70°, with overnight lows between 49° and 56°. The average high for September is 66° with an average low of 53°. 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.