S
M
T
W
T
F
S
30
96°
70°
31
91°
66°
1
91°
67°
2
92°
66°
3
94°
74°
4
96°
66°
5
91°
68°
6
76°
70°
7
87°
66°
8
84°
62°
9
82°
56°
10
85°
54°
11
89°
67°
12
74°
50°
13
67°
48°
14
75°
56°
15
73°
54°
16
69°
53°
17
76°
64°
18
81°
61°
19
64°
57°
20
65°
56°
21
61°
51°
22
66°
50°
23
69°
56°
24
71°
54°
25
68°
53°
26
71°
54°
27
74°
53°
28
73°
49°
29
74°
53°
30
72°
45°
1
76°
51°
2
65°
51°
3
65°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Scotland
Scotland's September 2026 forecast shows daily high temperatures ranging from 61° to 81°, with overnight lows between 45° and 64°. The average high for September is 70° with an average low of 54°. 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 Scotland. See also: October | November | December.