S
M
T
W
T
F
S
26
82°
55°
27
72°
59°
28
73°
54°
29
82°
52°
30
82°
64°
31
73°
63°
1
73°
57°
2
72°
52°
3
75°
48°
4
70°
50°
5
73°
48°
6
79°
48°
7
73°
54°
8
73°
52°
9
73°
50°
10
79°
48°
11
79°
54°
12
81°
50°
13
75°
52°
14
75°
48°
15
66°
57°
16
75°
57°
17
81°
54°
18
72°
52°
19
73°
48°
20
66°
48°
21
75°
48°
22
72°
52°
23
66°
45°
24
70°
39°
25
75°
50°
26
73°
57°
27
75°
52°
28
70°
52°
29
68°
54°
30
64°
59°
31
79°
55°
1
79°
54°
2
75°
54°
3
72°
55°
4
64°
55°
5
70°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Knife River
Knife River's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August 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 August weather will actually feel in Knife River. See also: September | October | November.
