S
M
T
W
T
F
S
30
74°
58°
31
73°
52°
1
74°
59°
2
71°
61°
3
75°
62°
4
71°
55°
5
70°
55°
6
71°
52°
7
74°
55°
8
72°
59°
9
68°
59°
10
67°
52°
11
64°
46°
12
72°
46°
13
77°
58°
14
61°
44°
15
62°
39°
16
73°
54°
17
70°
50°
18
63°
43°
19
60°
37°
20
67°
45°
21
55°
44°
22
61°
38°
23
64°
36°
24
68°
39°
25
73°
46°
26
71°
51°
27
70°
51°
28
63°
50°
29
64°
47°
30
70°
54°
1
69°
49°
2
66°
47°
3
66°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Thurso
Thurso's September 2026 forecast shows daily high temperatures ranging from 63° to 73°, with overnight lows between 39° and 54°. The average high for September is 68° with an average low of 48°. 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 Thurso. See also: October | November | December.
