S
M
T
W
T
F
S
30
95°
65°
31
96°
71°
1
97°
73°
2
96°
73°
3
96°
73°
4
98°
73°
5
100°
74°
6
101°
75°
7
98°
74°
8
100°
69°
9
97°
75°
10
98°
72°
11
93°
72°
12
96°
73°
13
99°
70°
14
98°
73°
15
100°
72°
16
100°
71°
17
98°
70°
18
100°
69°
19
100°
71°
20
98°
73°
21
96°
71°
22
91°
66°
23
86°
60°
24
86°
61°
25
85°
66°
26
84°
63°
27
87°
63°
28
89°
62°
29
87°
65°
30
88°
64°
1
84°
65°
2
82°
58°
3
85°
63°
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 82° to 100°, with overnight lows between 58° and 73°. The average high for September is 89° with an average low of 65°. 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.
