S
M
T
W
T
F
S
30
86°
64°
31
86°
64°
1
85°
63°
2
85°
63°
3
81°
57°
4
78°
57°
5
79°
55°
6
81°
58°
7
85°
62°
8
85°
62°
9
84°
61°
10
85°
63°
11
86°
62°
12
86°
63°
13
85°
62°
14
84°
60°
15
85°
59°
16
82°
54°
17
78°
58°
18
83°
57°
19
84°
58°
20
82°
58°
21
83°
57°
22
81°
55°
23
74°
52°
24
72°
56°
25
75°
55°
26
80°
56°
27
81°
55°
28
79°
55°
29
79°
54°
30
77°
54°
1
77°
53°
2
80°
45°
3
73°
44°
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 72° to 86°, with overnight lows between 44° and 64°. The average high for September is 81° with an average low of 57°. 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.
