S
M
T
W
T
F
S
30
64°
54°
31
63°
48°
1
59°
48°
2
61°
55°
3
63°
54°
4
59°
52°
5
59°
46°
6
66°
52°
7
62°
49°
8
59°
44°
9
63°
47°
10
61°
53°
11
63°
47°
12
62°
50°
13
63°
52°
14
62°
50°
15
62°
47°
16
61°
48°
17
61°
49°
18
62°
51°
19
58°
47°
20
62°
48°
21
62°
49°
22
61°
48°
23
62°
48°
24
62°
45°
25
60°
42°
26
58°
41°
27
59°
41°
28
60°
42°
29
59°
45°
30
60°
40°
1
57°
46°
2
60°
45°
3
60°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lockerbie
Lockerbie's September 2026 forecast shows daily high temperatures ranging from 57° to 66°, with overnight lows between 40° and 53°. The average high for September is 61° 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 Lockerbie. See also: October | November | December.