S
M
T
W
T
F
S
26
81°
54°
27
73°
52°
28
79°
54°
29
81°
55°
30
82°
56°
31
83°
56°
1
81°
54°
2
81°
53°
3
78°
53°
4
81°
54°
5
80°
53°
6
76°
53°
7
78°
52°
8
81°
54°
9
82°
55°
10
79°
53°
11
76°
48°
12
74°
49°
13
73°
46°
14
78°
49°
15
82°
43°
16
72°
42°
17
70°
39°
18
70°
42°
19
72°
45°
20
76°
48°
21
78°
50°
22
80°
53°
23
82°
42°
24
82°
37°
25
74°
38°
26
67°
40°
27
70°
43°
28
78°
50°
29
78°
50°
30
81°
39°
31
71°
38°
1
68°
47°
2
70°
50°
3
78°
41°
4
73°
38°
5
67°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Kelso
Kelso's August 2026 forecast shows daily high temperatures ranging from 67° to 83°, with overnight lows between 37° and 56°. The average high for August is 77° with an average low of 48°. 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 Kelso. See also: September | October | November.
