S
M
T
W
T
F
S
30
78°
60°
31
78°
66°
1
78°
63°
2
69°
61°
3
83°
67°
4
82°
68°
5
78°
62°
6
73°
59°
7
77°
53°
8
78°
58°
9
81°
61°
10
84°
69°
11
77°
59°
12
75°
55°
13
77°
64°
14
73°
53°
15
69°
51°
16
76°
62°
17
79°
66°
18
79°
53°
19
70°
59°
20
65°
54°
21
67°
52°
22
62°
50°
23
64°
51°
24
68°
54°
25
69°
50°
26
70°
52°
27
70°
52°
28
71°
51°
29
69°
47°
30
67°
45°
1
65°
47°
2
71°
51°
3
64°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Yorktown
Yorktown's September 2026 forecast shows daily high temperatures ranging from 62° to 79°, with overnight lows between 45° and 66°. The average high for September is 69° 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 Yorktown. See also: October | November | December.
