S
M
T
W
T
F
S
30
88°
69°
31
88°
69°
1
87°
68°
2
82°
63°
3
80°
63°
4
80°
64°
5
81°
61°
6
80°
63°
7
86°
67°
8
86°
66°
9
85°
67°
10
87°
67°
11
87°
66°
12
86°
67°
13
86°
67°
14
86°
64°
15
84°
58°
16
79°
57°
17
78°
58°
18
77°
56°
19
76°
55°
20
76°
55°
21
80°
56°
22
80°
60°
23
82°
56°
24
82°
54°
25
75°
53°
26
75°
53°
27
77°
58°
28
79°
60°
29
80°
52°
30
77°
52°
1
73°
59°
2
74°
58°
3
77°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Tappahannock
Tappahannock's September 2026 forecast shows daily high temperatures ranging from 73° to 88°, with overnight lows between 52° and 69°. The average high for September is 81° with an average low of 60°. 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 Tappahannock. See also: October | November | December.