S
M
T
W
T
F
S
30
98°
72°
31
102°
74°
1
99°
73°
2
104°
76°
3
83°
77°
4
97°
77°
5
99°
74°
6
94°
72°
7
97°
76°
8
98°
76°
9
97°
74°
10
97°
75°
11
99°
77°
12
100°
78°
13
101°
74°
14
96°
73°
15
94°
72°
16
96°
72°
17
94°
69°
18
94°
73°
19
93°
71°
20
83°
54°
21
91°
70°
22
91°
69°
23
90°
70°
24
86°
69°
25
82°
69°
26
87°
68°
27
87°
68°
28
86°
67°
29
87°
68°
30
86°
65°
1
80°
58°
2
78°
58°
3
78°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Calvert
Calvert's September 2026 forecast shows daily high temperatures ranging from 78° to 101°, with overnight lows between 54° and 78°. The average high for September is 91° with an average low of 69°. 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. See also: October | November | December.
