S
M
T
W
T
F
S
30
73°
52°
31
73°
51°
1
74°
49°
2
72°
50°
3
74°
50°
4
73°
51°
5
73°
52°
6
72°
49°
7
70°
50°
8
73°
54°
9
72°
47°
10
70°
46°
11
72°
50°
12
73°
53°
13
71°
45°
14
68°
53°
15
72°
54°
16
77°
54°
17
74°
51°
18
75°
43°
19
67°
42°
20
65°
42°
21
64°
43°
22
67°
49°
23
70°
49°
24
66°
45°
25
66°
40°
26
65°
39°
27
63°
39°
28
61°
40°
29
61°
39°
30
62°
45°
1
61°
43°
2
Hist. Avg.
64°
39°
3
Hist. Avg.
64°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Blair
Blair's September 2026 forecast shows daily high temperatures ranging from 61° to 77°, with overnight lows between 39° and 54°. The average high for September is 69° with an average low of 47°. 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 Blair. See also: October | November | December.
