S
M
T
W
T
F
S
30
80°
57°
31
82°
57°
1
84°
61°
2
85°
62°
3
84°
61°
4
85°
61°
5
84°
60°
6
78°
59°
7
79°
59°
8
83°
60°
9
83°
56°
10
82°
55°
11
82°
59°
12
81°
58°
13
82°
59°
14
80°
57°
15
81°
58°
16
81°
57°
17
76°
58°
18
Hist. Avg.
75°
52°
19
Hist. Avg.
75°
52°
20
Hist. Avg.
74°
52°
21
Hist. Avg.
74°
51°
22
Hist. Avg.
74°
51°
23
Hist. Avg.
73°
50°
24
Hist. Avg.
73°
50°
25
Hist. Avg.
73°
50°
26
Hist. Avg.
72°
49°
27
Hist. Avg.
72°
49°
28
Hist. Avg.
72°
48°
29
Hist. Avg.
71°
48°
30
Hist. Avg.
71°
48°
1
Hist. Avg.
71°
47°
2
Hist. Avg.
70°
47°
3
Hist. Avg.
70°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Check
Check's September 2026 forecast shows daily high temperatures ranging from 76° to 85°, with overnight lows between 55° and 62°. The average high for September is 82° with an average low of 59°. 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.