S
M
T
W
T
F
S
26
77°
48°
27
79°
51°
28
83°
52°
29
86°
53°
30
88°
56°
31
88°
48°
1
82°
49°
2
83°
53°
3
85°
56°
4
86°
50°
5
82°
51°
6
80°
47°
7
81°
47°
8
79°
48°
9
78°
54°
10
84°
52°
11
87°
53°
12
85°
54°
13
86°
50°
14
78°
49°
15
77°
46°
16
Hist. Avg.
82°
49°
17
Hist. Avg.
82°
49°
18
Hist. Avg.
82°
48°
19
Hist. Avg.
81°
48°
20
Hist. Avg.
81°
48°
21
Hist. Avg.
81°
48°
22
Hist. Avg.
80°
48°
23
Hist. Avg.
80°
47°
24
Hist. Avg.
80°
47°
25
Hist. Avg.
80°
47°
26
Hist. Avg.
79°
47°
27
Hist. Avg.
79°
46°
28
Hist. Avg.
79°
46°
29
Hist. Avg.
78°
46°
30
Hist. Avg.
78°
46°
31
Hist. Avg.
78°
46°
1
Hist. Avg.
77°
45°
2
Hist. Avg.
77°
45°
3
Hist. Avg.
77°
45°
4
Hist. Avg.
76°
45°
5
Hist. Avg.
76°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Clark Fork
Clark Fork's August 2026 forecast shows daily high temperatures ranging from 77° to 88°, with overnight lows between 46° and 56°. The average high for August is 83° 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 Clark Fork. See also: September | October | November.