S
M
T
W
T
F
S
26
100°
73°
27
101°
74°
28
100°
73°
29
94°
73°
30
100°
74°
31
101°
73°
1
100°
73°
2
93°
70°
3
101°
68°
4
95°
68°
5
99°
69°
6
100°
70°
7
101°
69°
8
100°
68°
9
101°
69°
10
101°
70°
11
102°
69°
12
102°
68°
13
100°
67°
14
94°
66°
15
94°
71°
16
98°
65°
17
94°
68°
18
97°
68°
19
94°
67°
20
93°
69°
21
96°
69°
22
97°
72°
23
99°
71°
24
99°
68°
25
97°
67°
26
98°
64°
27
96°
62°
28
91°
64°
29
91°
63°
30
90°
63°
31
91°
64°
1
91°
63°
2
92°
65°
3
92°
64°
4
93°
64°
5
94°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Riverton
Riverton's August 2026 forecast shows daily high temperatures ranging from 90° to 102°, with overnight lows between 62° and 74°. The average high for August is 97° with an average low of 68°. 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 Riverton. See also: September | October | November.
