S
M
T
W
T
F
S
26
90°
54°
27
89°
55°
28
86°
54°
29
84°
50°
30
83°
47°
31
84°
53°
1
91°
54°
2
88°
54°
3
89°
50°
4
88°
47°
5
93°
52°
6
92°
47°
7
90°
46°
8
86°
48°
9
86°
48°
10
90°
52°
11
92°
52°
12
92°
53°
13
91°
52°
14
92°
47°
15
89°
50°
16
87°
46°
17
86°
45°
18
85°
44°
19
84°
44°
20
83°
45°
21
84°
44°
22
84°
44°
23
83°
46°
24
84°
47°
25
88°
50°
26
89°
49°
27
90°
49°
28
89°
48°
29
89°
45°
30
85°
44°
31
83°
44°
1
82°
45°
2
83°
45°
3
84°
48°
4
85°
48°
5
88°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Dunsmuir
Dunsmuir's August 2026 forecast shows daily high temperatures ranging from 82° to 93°, with overnight lows between 44° and 55°. The average high for August is 87° with an average low of 48°. 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 Dunsmuir. See also: September | October | November.