S
M
T
W
T
F
S
30
84°
65°
31
81°
70°
1
90°
72°
2
85°
70°
3
92°
71°
4
87°
66°
5
82°
61°
6
79°
60°
7
79°
58°
8
79°
58°
9
82°
61°
10
89°
60°
11
80°
59°
12
82°
60°
13
78°
57°
14
79°
56°
15
78°
54°
16
74°
58°
17
74°
53°
18
71°
49°
19
77°
51°
20
79°
56°
21
78°
57°
22
77°
57°
23
77°
54°
24
74°
51°
25
75°
55°
26
77°
56°
27
77°
54°
28
69°
49°
29
67°
46°
30
69°
49°
1
67°
48°
2
68°
49°
3
66°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Smithsburg
Smithsburg's September 2026 forecast shows daily high temperatures ranging from 66° to 92°, with overnight lows between 46° and 71°. The average high for September is 77° with an average low of 56°. 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 Smithsburg. See also: October | November | December.
