S
M
T
W
T
F
S
26
96°
73°
27
97°
74°
28
101°
73°
29
100°
74°
30
101°
74°
31
103°
75°
1
104°
76°
2
104°
74°
3
99°
74°
4
97°
73°
5
91°
75°
6
93°
74°
7
99°
76°
8
99°
75°
9
98°
75°
10
99°
74°
11
98°
75°
12
99°
75°
13
99°
74°
14
98°
75°
15
98°
75°
16
97°
74°
17
98°
75°
18
98°
75°
19
97°
74°
20
98°
75°
21
98°
75°
22
97°
74°
23
94°
73°
24
93°
73°
25
90°
69°
26
89°
70°
27
89°
70°
28
90°
70°
29
88°
70°
30
88°
71°
31
89°
72°
1
88°
72°
2
87°
70°
3
88°
71°
4
93°
66°
5
94°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Junction
Junction's August 2026 forecast shows daily high temperatures ranging from 87° to 104°, with overnight lows between 66° and 76°. The average high for August is 96° with an average low of 73°. 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 Junction. See also: September | October | November.