S
M
T
W
T
F
S
30
72°
51°
31
73°
51°
1
69°
52°
2
73°
48°
3
71°
48°
4
70°
47°
5
69°
45°
6
71°
48°
7
70°
52°
8
68°
51°
9
68°
51°
10
69°
49°
11
69°
47°
12
70°
52°
13
73°
53°
14
74°
54°
15
75°
53°
16
75°
47°
17
74°
48°
18
69°
50°
19
70°
54°
20
76°
56°
21
77°
48°
22
76°
46°
23
70°
49°
24
71°
54°
25
73°
48°
26
71°
48°
27
71°
50°
28
72°
51°
29
71°
49°
30
71°
49°
1
72°
50°
2
73°
49°
3
75°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Maryland
Maryland's September 2026 forecast shows daily high temperatures ranging from 68° to 77°, with overnight lows between 45° and 56°. The average high for September is 72° with an average low of 50°. 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 Maryland. See also: October | November | December.
