S
M
T
W
T
F
S
26
85°
64°
27
84°
64°
28
87°
63°
29
91°
63°
30
81°
60°
31
80°
56°
1
81°
63°
2
89°
64°
3
83°
58°
4
84°
55°
5
87°
58°
6
88°
62°
7
92°
63°
8
91°
62°
9
91°
56°
10
86°
53°
11
81°
51°
12
79°
51°
13
80°
52°
14
80°
53°
15
81°
50°
16
79°
53°
17
81°
54°
18
82°
57°
19
85°
61°
20
89°
59°
21
89°
60°
22
88°
57°
23
86°
50°
24
78°
50°
25
79°
51°
26
78°
56°
27
80°
53°
28
86°
48°
29
76°
46°
30
76°
52°
31
77°
54°
1
84°
55°
2
82°
51°
3
75°
45°
4
74°
46°
5
74°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in West Glendive
West Glendive's August 2026 forecast shows daily high temperatures ranging from 74° to 92°, with overnight lows between 45° and 64°. The average high for August is 83° with an average low of 55°. 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 West Glendive. See also: September | October | November.