S
M
T
W
T
F
S
30
94°
67°
31
92°
66°
1
93°
67°
2
94°
66°
3
94°
69°
4
95°
70°
5
95°
69°
6
93°
68°
7
93°
68°
8
92°
67°
9
93°
69°
10
93°
68°
11
94°
66°
12
91°
66°
13
91°
64°
14
88°
64°
15
88°
65°
16
84°
65°
17
88°
64°
18
90°
55°
19
90°
56°
20
81°
57°
21
82°
63°
22
84°
63°
23
88°
61°
24
87°
62°
25
89°
64°
26
88°
63°
27
89°
63°
28
88°
55°
29
86°
58°
30
88°
61°
1
81°
62°
2
Hist. Avg.
82°
57°
3
Hist. Avg.
82°
57°
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 81° to 95°, with overnight lows between 55° and 70°. The average high for September is 90° with an average low of 64°. 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.
