S
M
T
W
T
F
S
26
79°
41°
27
75°
42°
28
78°
42°
29
79°
41°
30
78°
41°
31
73°
38°
1
70°
40°
2
71°
34°
3
69°
35°
4
70°
34°
5
69°
33°
6
70°
36°
7
71°
34°
8
70°
34°
9
71°
36°
10
74°
37°
11
75°
39°
12
75°
37°
13
72°
34°
14
72°
36°
15
69°
35°
16
74°
35°
17
71°
36°
18
69°
39°
19
75°
39°
20
75°
40°
21
74°
35°
22
68°
38°
23
72°
36°
24
72°
37°
25
74°
36°
26
71°
35°
27
67°
37°
28
69°
38°
29
69°
35°
30
72°
36°
31
70°
35°
1
67°
36°
2
Hist. Avg.
65°
34°
3
Hist. Avg.
64°
34°
4
Hist. Avg.
64°
34°
5
Hist. Avg.
64°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Silverthorne
Silverthorne's August 2026 forecast shows daily high temperatures ranging from 67° to 79°, with overnight lows between 33° and 42°. The average high for August is 72° with an average low of 37°. 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 Silverthorne. See also: September | October | November.