S
M
T
W
T
F
S
30
82°
63°
31
80°
64°
1
80°
69°
2
81°
71°
3
85°
70°
4
88°
71°
5
88°
69°
6
85°
63°
7
82°
63°
8
81°
64°
9
80°
61°
10
78°
61°
11
78°
62°
12
79°
61°
13
81°
67°
14
83°
67°
15
80°
61°
16
77°
63°
17
76°
62°
18
77°
65°
19
79°
58°
20
79°
61°
21
76°
59°
22
81°
57°
23
75°
56°
24
74°
56°
25
74°
61°
26
75°
58°
27
76°
62°
28
75°
62°
29
78°
54°
30
73°
57°
1
71°
62°
2
78°
61°
3
76°
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 71° to 88°, with overnight lows between 54° and 71°. The average high for September is 79° with an average low of 62°. 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.
