S
M
T
W
T
F
S
26
115°
92°
27
114°
92°
28
114°
91°
29
112°
91°
30
116°
90°
31
118°
90°
1
120°
89°
2
119°
90°
3
117°
89°
4
114°
87°
5
113°
87°
6
111°
85°
7
110°
86°
8
111°
82°
9
112°
84°
10
110°
85°
11
111°
84°
12
111°
82°
13
110°
82°
14
107°
81°
15
107°
82°
16
109°
83°
17
111°
84°
18
105°
82°
19
106°
83°
20
110°
84°
21
109°
82°
22
110°
81°
23
106°
80°
24
104°
77°
25
103°
76°
26
104°
75°
27
105°
77°
28
102°
74°
29
101°
73°
30
101°
73°
31
102°
74°
1
102°
73°
2
103°
73°
3
101°
72°
4
100°
71°
5
101°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fort Mohave
Fort Mohave's August 2026 forecast shows daily high temperatures ranging from 100° to 120°, with overnight lows between 71° and 92°. The average high for August is 109° with an average low of 82°. 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 Fort Mohave. See also: September | October | November.
