S
M
T
W
T
F
S
31
78°
49°
1
80°
50°
2
78°
53°
3
83°
51°
4
86°
59°
5
88°
60°
6
91°
61°
7
76°
52°
8
74°
49°
9
77°
47°
10
70°
58°
11
81°
58°
12
82°
55°
13
85°
53°
14
87°
59°
15
84°
59°
16
74°
56°
17
67°
58°
18
83°
62°
19
88°
57°
20
77°
62°
21
72°
62°
22
79°
60°
23
84°
62°
24
80°
63°
25
81°
67°
26
81°
63°
27
77°
63°
28
84°
61°
29
79°
61°
30
74°
62°
1
75°
48°
2
71°
46°
3
74°
45°
4
82°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Ashton-Sandy Spring
Ashton-Sandy Spring's September 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Ashton-Sandy Spring. See also: October | November | December.
