S
M
T
W
T
F
S
30
85°
65°
31
84°
69°
1
92°
67°
2
89°
70°
3
78°
65°
4
79°
68°
5
79°
63°
6
79°
51°
7
79°
51°
8
80°
53°
9
82°
69°
10
78°
50°
11
77°
45°
12
86°
52°
13
74°
46°
14
70°
40°
15
74°
56°
16
73°
60°
17
69°
54°
18
69°
48°
19
62°
54°
20
69°
55°
21
62°
46°
22
65°
43°
23
69°
44°
24
71°
42°
25
69°
43°
26
72°
36°
27
77°
40°
28
78°
43°
29
78°
47°
30
65°
59°
1
67°
49°
2
64°
39°
3
63°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Clare
Clare's September 2026 forecast shows daily high temperatures ranging from 63° to 67°, with overnight lows between 39° and 49°. The average high for September is 65° with an average low of 45°. 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 Clare. See also: October | November | December.
