S
M
T
W
T
F
S
30
88°
67°
31
87°
65°
1
82°
66°
2
83°
68°
3
87°
64°
4
87°
69°
5
88°
68°
6
87°
66°
7
87°
62°
8
81°
61°
9
82°
61°
10
83°
64°
11
85°
65°
12
85°
64°
13
82°
63°
14
79°
66°
15
84°
65°
16
85°
63°
17
84°
59°
18
78°
58°
19
75°
60°
20
77°
64°
21
77°
64°
22
82°
59°
23
80°
63°
24
76°
62°
25
76°
63°
26
80°
63°
27
81°
62°
28
82°
59°
29
77°
62°
30
74°
61°
1
76°
62°
2
79°
60°
3
78°
54°
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 74° to 88°, with overnight lows between 54° and 69°. The average high for September is 82° 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.
