S
M
T
W
T
F
S
26
84°
45°
27
83°
47°
28
89°
40°
29
84°
38°
30
79°
40°
31
81°
42°
1
83°
43°
2
86°
46°
3
87°
44°
4
83°
49°
5
87°
49°
6
88°
51°
7
90°
50°
8
91°
49°
9
89°
48°
10
78°
44°
11
76°
45°
12
77°
41°
13
Hist. Avg.
86°
50°
14
Hist. Avg.
86°
49°
15
Hist. Avg.
85°
49°
16
Hist. Avg.
85°
49°
17
Hist. Avg.
85°
49°
18
Hist. Avg.
84°
48°
19
Hist. Avg.
84°
48°
20
Hist. Avg.
84°
48°
21
Hist. Avg.
84°
48°
22
Hist. Avg.
83°
47°
23
Hist. Avg.
83°
47°
24
Hist. Avg.
83°
47°
25
Hist. Avg.
82°
46°
26
Hist. Avg.
82°
46°
27
Hist. Avg.
82°
46°
28
Hist. Avg.
81°
46°
29
Hist. Avg.
81°
45°
30
Hist. Avg.
81°
45°
31
Hist. Avg.
80°
45°
1
Hist. Avg.
80°
45°
2
Hist. Avg.
80°
44°
3
Hist. Avg.
79°
44°
4
Hist. Avg.
79°
44°
5
Hist. Avg.
79°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Lemhi
Lemhi's August 2026 forecast shows daily high temperatures ranging from 76° to 91°, with overnight lows between 38° and 51°. The average high for August is 84° with an average low of 45°. 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 Lemhi. See also: September | October | November.