S
M
T
W
T
F
S
30
76°
54°
31
78°
52°
1
75°
52°
2
75°
52°
3
74°
58°
4
74°
54°
5
78°
51°
6
74°
50°
7
73°
51°
8
74°
53°
9
74°
54°
10
78°
56°
11
77°
54°
12
70°
54°
13
71°
57°
14
Hist. Avg.
75°
57°
15
Hist. Avg.
75°
57°
16
Hist. Avg.
74°
56°
17
Hist. Avg.
74°
56°
18
Hist. Avg.
74°
56°
19
Hist. Avg.
73°
55°
20
Hist. Avg.
73°
55°
21
Hist. Avg.
72°
54°
22
Hist. Avg.
72°
54°
23
Hist. Avg.
71°
54°
24
Hist. Avg.
71°
53°
25
Hist. Avg.
70°
53°
26
Hist. Avg.
70°
52°
27
Hist. Avg.
70°
52°
28
Hist. Avg.
69°
51°
29
Hist. Avg.
69°
51°
30
Hist. Avg.
68°
50°
1
Hist. Avg.
68°
50°
2
Hist. Avg.
67°
50°
3
Hist. Avg.
67°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Sandown
Sandown's September 2026 forecast shows daily high temperatures ranging from 70° to 78°, with overnight lows between 50° and 58°. The average high for September is 75° 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 Sandown. See also: October | November | December.
