S
M
T
W
T
F
S
26
80°
46°
27
78°
48°
28
78°
47°
29
79°
42°
30
77°
45°
31
79°
42°
1
80°
42°
2
79°
41°
3
83°
41°
4
80°
39°
5
78°
37°
6
80°
39°
7
78°
41°
8
78°
44°
9
85°
47°
10
77°
46°
11
79°
47°
12
Hist. Avg.
86°
50°
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 77° to 85°, with overnight lows between 37° and 48°. The average high for August is 79° with an average low of 43°. 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.