S
M
T
W
T
F
S
26
85°
57°
27
85°
54°
28
85°
53°
29
80°
53°
30
79°
53°
31
84°
55°
1
87°
50°
2
76°
47°
3
68°
48°
4
73°
50°
5
75°
50°
6
73°
52°
7
74°
51°
8
76°
49°
9
82°
55°
10
76°
53°
11
74°
52°
12
69°
49°
13
77°
53°
14
73°
50°
15
68°
45°
16
69°
48°
17
72°
53°
18
68°
52°
19
72°
52°
20
79°
53°
21
78°
52°
22
78°
49°
23
71°
52°
24
79°
53°
25
78°
52°
26
77°
52°
27
70°
51°
28
70°
51°
29
75°
50°
30
75°
50°
31
65°
48°
1
66°
50°
2
64°
46°
3
64°
44°
4
62°
46°
5
62°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Longview
Longview's August 2026 forecast shows daily high temperatures ranging from 62° to 87°, with overnight lows between 43° and 57°. The average high for August is 74° with an average low of 51°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Longview. See also: September | October | November.