S
M
T
W
T
F
S
30
95°
70°
31
96°
69°
1
96°
70°
2
95°
70°
3
96°
69°
4
96°
71°
5
95°
71°
6
96°
70°
7
97°
67°
8
92°
68°
9
88°
68°
10
91°
67°
11
92°
67°
12
94°
68°
13
92°
67°
14
93°
68°
15
92°
66°
16
93°
61°
17
87°
63°
18
86°
67°
19
86°
59°
20
92°
58°
21
85°
57°
22
83°
57°
23
84°
58°
24
84°
57°
25
85°
58°
26
85°
58°
27
89°
63°
28
90°
65°
29
90°
64°
30
91°
64°
1
89°
62°
2
90°
56°
3
83°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Streeter
Streeter's September 2026 forecast shows daily high temperatures ranging from 83° to 97°, with overnight lows between 56° and 71°. The average high for September is 91° 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 Streeter. See also: October | November | December.