S
M
T
W
T
F
S
30
86°
61°
31
88°
64°
1
90°
64°
2
91°
65°
3
93°
66°
4
92°
67°
5
85°
65°
6
81°
64°
7
78°
61°
8
82°
56°
9
84°
57°
10
85°
63°
11
86°
65°
12
79°
69°
13
84°
68°
14
84°
58°
15
81°
57°
16
89°
56°
17
91°
59°
18
84°
64°
19
85°
64°
20
83°
65°
21
82°
66°
22
70°
58°
23
61°
55°
24
63°
47°
25
73°
47°
26
72°
47°
27
73°
48°
28
72°
52°
29
73°
52°
30
74°
50°
1
69°
52°
2
70°
49°
3
71°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Check
Check's September 2026 forecast shows daily high temperatures ranging from 61° to 82°, with overnight lows between 47° and 66°. The average high for September is 71° with an average low of 52°. 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 Check. See also: October | November | December.
