S
M
T
W
T
F
S
30
88°
72°
31
87°
66°
1
84°
65°
2
80°
66°
3
82°
67°
4
82°
66°
5
83°
66°
6
79°
65°
7
79°
65°
8
80°
67°
9
80°
64°
10
78°
64°
11
80°
66°
12
82°
65°
13
81°
64°
14
78°
63°
15
79°
64°
16
78°
63°
17
79°
62°
18
76°
62°
19
79°
61°
20
Hist. Avg.
78°
62°
21
Hist. Avg.
78°
62°
22
Hist. Avg.
77°
61°
23
Hist. Avg.
77°
61°
24
Hist. Avg.
77°
60°
25
Hist. Avg.
76°
60°
26
Hist. Avg.
76°
60°
27
Hist. Avg.
76°
59°
28
Hist. Avg.
75°
59°
29
Hist. Avg.
75°
58°
30
Hist. Avg.
75°
58°
1
Hist. Avg.
74°
58°
2
Hist. Avg.
74°
57°
3
Hist. Avg.
74°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Calvert Cliffs State Park
Calvert Cliffs State Park's September 2026 forecast shows daily high temperatures ranging from 76° to 88°, with overnight lows between 61° and 72°. The average high for September is 81° with an average low of 65°. 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 Calvert Cliffs State Park. See also: October | November | December.
