S
M
T
W
T
F
S
30
81°
61°
31
81°
61°
1
80°
56°
2
74°
54°
3
72°
53°
4
73°
53°
5
73°
52°
6
77°
57°
7
80°
59°
8
79°
59°
9
76°
58°
10
77°
59°
11
80°
59°
12
80°
58°
13
79°
60°
14
79°
50°
15
72°
50°
16
69°
50°
17
71°
49°
18
69°
47°
19
70°
48°
20
69°
48°
21
75°
50°
22
75°
54°
23
74°
46°
24
75°
45°
25
70°
45°
26
67°
47°
27
71°
52°
28
71°
52°
29
73°
43°
30
69°
45°
1
65°
49°
2
66°
50°
3
69°
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 65° to 81°, with overnight lows between 43° and 61°. The average high for September is 74° with an average low of 52°. 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.
