S
M
T
W
T
F
S
30
88°
64°
31
85°
69°
1
88°
69°
2
89°
64°
3
83°
63°
4
84°
64°
5
83°
65°
6
87°
67°
7
87°
68°
8
86°
67°
9
85°
68°
10
86°
68°
11
86°
67°
12
85°
67°
13
86°
66°
14
86°
66°
15
83°
65°
16
80°
65°
17
83°
60°
18
79°
60°
19
81°
61°
20
82°
64°
21
83°
63°
22
78°
60°
23
82°
61°
24
81°
63°
25
82°
60°
26
82°
61°
27
76°
61°
28
Hist. Avg.
79°
58°
29
Hist. Avg.
78°
58°
30
Hist. Avg.
78°
57°
1
Hist. Avg.
78°
57°
2
Hist. Avg.
78°
56°
3
Hist. Avg.
77°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Longview
Longview's September 2026 forecast shows daily high temperatures ranging from 76° to 89°, with overnight lows between 60° and 69°. The average high for September is 84° 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 Longview. See also: October | November | December.
