S
M
T
W
T
F
S
30
87°
66°
31
82°
67°
1
81°
67°
2
81°
69°
3
87°
69°
4
87°
68°
5
86°
68°
6
86°
67°
7
85°
68°
8
83°
64°
9
81°
61°
10
79°
61°
11
79°
62°
12
83°
60°
13
82°
66°
14
84°
61°
15
78°
59°
16
76°
60°
17
78°
61°
18
81°
63°
19
83°
61°
20
83°
64°
21
82°
65°
22
83°
60°
23
80°
58°
24
77°
57°
25
77°
57°
26
76°
63°
27
81°
62°
28
80°
63°
29
81°
61°
30
79°
56°
1
75°
62°
2
79°
62°
3
79°
60°
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 75° to 87°, with overnight lows between 56° and 69°. The average high for September is 81° with an average low of 63°. 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.
