S
M
T
W
T
F
S
30
93°
59°
31
94°
59°
1
95°
58°
2
94°
58°
3
94°
60°
4
93°
58°
5
94°
57°
6
93°
50°
7
88°
49°
8
85°
51°
9
86°
52°
10
89°
55°
11
91°
54°
12
91°
56°
13
90°
57°
14
93°
56°
15
93°
54°
16
91°
53°
17
90°
55°
18
89°
56°
19
90°
55°
20
90°
51°
21
88°
54°
22
85°
54°
23
81°
50°
24
82°
54°
25
83°
53°
26
85°
51°
27
83°
50°
28
83°
53°
29
84°
48°
30
81°
53°
1
81°
54°
2
89°
53°
3
82°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Barrett Junction
Barrett Junction's September 2026 forecast shows daily high temperatures ranging from 81° to 95°, with overnight lows between 48° and 60°. The average high for September is 88° with an average low of 54°. 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 Barrett Junction. See also: October | November | December.
