S
M
T
W
T
F
S
30
92°
71°
31
95°
70°
1
96°
70°
2
98°
72°
3
99°
72°
4
98°
71°
5
99°
72°
6
98°
70°
7
89°
69°
8
90°
68°
9
91°
69°
10
96°
73°
11
89°
72°
12
85°
69°
13
89°
72°
14
92°
70°
15
90°
67°
16
88°
64°
17
87°
67°
18
85°
65°
19
80°
62°
20
83°
62°
21
83°
63°
22
81°
62°
23
82°
61°
24
85°
65°
25
83°
64°
26
80°
61°
27
81°
62°
28
84°
63°
29
85°
63°
30
84°
62°
1
82°
63°
2
83°
62°
3
83°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Keysville
Keysville's September 2026 forecast shows daily high temperatures ranging from 80° to 96°, with overnight lows between 61° and 73°. The average high for September is 85° 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 Keysville. See also: October | November | December.
