S
M
T
W
T
F
S
30
55°
54°
31
59°
48°
1
59°
50°
2
55°
48°
3
63°
54°
4
59°
52°
5
57°
52°
6
61°
54°
7
63°
52°
8
58°
49°
9
57°
52°
10
61°
53°
11
59°
54°
12
59°
53°
13
59°
54°
14
62°
52°
15
58°
51°
16
57°
51°
17
58°
52°
18
57°
51°
19
58°
52°
20
58°
54°
21
59°
55°
22
60°
55°
23
59°
54°
24
60°
54°
25
56°
53°
26
56°
53°
27
58°
54°
28
59°
53°
29
58°
53°
30
57°
52°
1
58°
54°
2
59°
54°
3
58°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Stromness
Stromness's September 2026 forecast shows daily high temperatures ranging from 56° to 63°, with overnight lows between 49° and 55°. The average high for September is 59° with an average low of 53°. 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 Stromness. See also: October | November | December.
