S
M
T
W
T
F
S
30
69°
46°
31
68°
45°
1
69°
45°
2
75°
44°
3
73°
48°
4
74°
50°
5
73°
51°
6
74°
52°
7
72°
51°
8
72°
50°
9
73°
49°
10
Hist. Avg.
68°
49°
11
Hist. Avg.
68°
48°
12
Hist. Avg.
67°
48°
13
Hist. Avg.
67°
48°
14
Hist. Avg.
67°
47°
15
Hist. Avg.
66°
47°
16
Hist. Avg.
66°
46°
17
Hist. Avg.
65°
46°
18
Hist. Avg.
65°
46°
19
Hist. Avg.
64°
45°
20
Hist. Avg.
64°
45°
21
Hist. Avg.
63°
45°
22
Hist. Avg.
63°
44°
23
Hist. Avg.
62°
44°
24
Hist. Avg.
62°
44°
25
Hist. Avg.
61°
43°
26
Hist. Avg.
61°
43°
27
Hist. Avg.
60°
42°
28
Hist. Avg.
60°
42°
29
Hist. Avg.
59°
42°
30
Hist. Avg.
59°
41°
1
Hist. Avg.
58°
41°
2
Hist. Avg.
58°
41°
3
Hist. Avg.
57°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Clair
Clair's September 2026 forecast shows daily high temperatures ranging from 68° to 75°, with overnight lows between 44° and 52°. The average high for September is 72° with an average low of 48°. 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 Clair. See also: October | November | December.