S
M
T
W
T
F
S
30
77°
55°
31
78°
60°
1
83°
52°
2
78°
51°
3
74°
51°
4
73°
50°
5
74°
54°
6
79°
61°
7
85°
61°
8
85°
53°
9
78°
52°
10
75°
53°
11
76°
60°
12
80°
53°
13
81°
48°
14
73°
48°
15
73°
53°
16
74°
57°
17
80°
51°
18
79°
47°
19
73°
56°
20
78°
54°
21
78°
57°
22
80°
56°
23
81°
56°
24
80°
55°
25
81°
56°
26
80°
56°
27
80°
55°
28
81°
54°
29
80°
54°
30
80°
55°
1
78°
45°
2
80°
41°
3
76°
42°
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 73° to 85°, with overnight lows between 41° and 61°. The average high for September is 78° 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.
