S
M
T
W
T
F
S
30
103°
77°
31
102°
75°
1
100°
75°
2
91°
75°
3
97°
77°
4
100°
73°
5
99°
75°
6
98°
73°
7
102°
75°
8
101°
76°
9
99°
75°
10
98°
75°
11
99°
75°
12
102°
77°
13
102°
75°
14
101°
75°
15
100°
76°
16
100°
75°
17
100°
76°
18
98°
71°
19
98°
67°
20
99°
72°
21
94°
72°
22
100°
72°
23
96°
73°
24
93°
70°
25
91°
61°
26
89°
66°
27
95°
64°
28
93°
71°
29
96°
68°
30
94°
74°
1
95°
72°
2
79°
73°
3
75°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Longview
Longview's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Longview. See also: October | November | December.
