S
M
T
W
T
F
S
26
87°
57°
27
84°
55°
28
84°
55°
29
86°
57°
30
88°
61°
31
92°
60°
1
92°
58°
2
91°
56°
3
87°
54°
4
86°
55°
5
85°
55°
6
85°
54°
7
86°
54°
8
85°
57°
9
84°
56°
10
83°
54°
11
85°
55°
12
84°
52°
13
83°
55°
14
83°
53°
15
84°
53°
16
83°
54°
17
83°
52°
18
84°
53°
19
82°
51°
20
81°
52°
21
85°
54°
22
87°
55°
23
87°
56°
24
86°
57°
25
88°
57°
26
88°
53°
27
81°
50°
28
84°
53°
29
87°
50°
30
87°
50°
31
79°
49°
1
80°
54°
2
86°
55°
3
Hist. Avg.
80°
52°
4
Hist. Avg.
80°
52°
5
Hist. Avg.
79°
52°
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 79° to 92°, with overnight lows between 49° and 61°. The average high for August is 85° 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 August weather will actually feel in Longview. See also: September | October | November.