S
M
T
W
T
F
S
30
68°
46°
31
67°
50°
1
67°
50°
2
65°
49°
3
65°
50°
4
64°
50°
5
65°
48°
6
64°
48°
7
65°
49°
8
63°
46°
9
65°
47°
10
65°
45°
11
64°
49°
12
65°
49°
13
63°
48°
14
61°
46°
15
61°
44°
16
60°
44°
17
59°
43°
18
59°
44°
19
61°
45°
20
60°
44°
21
59°
43°
22
60°
44°
23
60°
45°
24
59°
44°
25
59°
46°
26
62°
48°
27
61°
48°
28
62°
48°
29
Hist. Avg.
56°
44°
30
Hist. Avg.
56°
44°
1
Hist. Avg.
55°
44°
2
Hist. Avg.
55°
44°
3
Hist. Avg.
55°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Low Lorton
Low Lorton's September 2026 forecast shows daily high temperatures ranging from 59° to 68°, with overnight lows between 43° and 50°. The average high for September is 63° with an average low of 47°. 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 Low Lorton. See also: October | November | December.