S
M
T
W
T
F
S
26
90°
58°
27
90°
55°
28
91°
55°
29
91°
53°
30
89°
54°
31
92°
55°
1
89°
53°
2
86°
52°
3
87°
51°
4
84°
53°
5
86°
52°
6
87°
53°
7
85°
52°
8
85°
52°
9
87°
53°
10
90°
56°
11
91°
50°
12
84°
46°
13
82°
47°
14
81°
49°
15
81°
46°
16
80°
48°
17
82°
53°
18
87°
54°
19
89°
54°
20
88°
55°
21
89°
54°
22
88°
54°
23
87°
52°
24
80°
54°
25
81°
53°
26
80°
47°
27
79°
47°
28
78°
41°
29
76°
42°
30
76°
41°
31
77°
42°
1
78°
43°
2
81°
45°
3
82°
46°
4
84°
50°
5
86°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Lost River
Lost River's August 2026 forecast shows daily high temperatures ranging from 76° to 92°, with overnight lows between 41° and 58°. The average high for August is 85° with an average low of 50°. 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 Lost River. See also: September | October | November.
