S
M
T
W
T
F
S
26
83°
68°
27
87°
71°
28
89°
72°
29
86°
73°
30
88°
68°
31
88°
64°
1
85°
72°
2
87°
65°
3
81°
63°
4
80°
63°
5
79°
62°
6
80°
64°
7
81°
62°
8
81°
63°
9
82°
63°
10
81°
64°
11
83°
70°
12
84°
70°
13
83°
72°
14
88°
71°
15
88°
63°
16
83°
65°
17
84°
62°
18
80°
63°
19
79°
68°
20
79°
70°
21
81°
70°
22
83°
71°
23
87°
70°
24
84°
62°
25
86°
65°
26
80°
61°
27
79°
62°
28
79°
63°
29
84°
66°
30
82°
68°
31
Hist. Avg.
81°
64°
1
Hist. Avg.
80°
64°
2
Hist. Avg.
80°
64°
3
Hist. Avg.
80°
63°
4
Hist. Avg.
80°
63°
5
Hist. Avg.
80°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Summit Argo
Summit Argo's August 2026 forecast shows daily high temperatures ranging from 79° to 89°, with overnight lows between 61° and 73°. The average high for August is 83° with an average low of 66°. 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 Summit Argo. See also: September | October | November.