S
M
T
W
T
F
S
26
64°
56°
27
64°
54°
28
68°
57°
29
72°
55°
30
68°
52°
31
66°
57°
1
70°
55°
2
72°
52°
3
79°
51°
4
82°
53°
5
82°
52°
6
84°
54°
7
84°
50°
8
79°
56°
9
75°
54°
10
75°
52°
11
77°
54°
12
84°
55°
13
85°
57°
14
83°
58°
15
82°
56°
16
80°
56°
17
80°
56°
18
74°
59°
19
75°
58°
20
77°
58°
21
76°
59°
22
77°
59°
23
77°
58°
24
78°
57°
25
76°
58°
26
75°
52°
27
78°
56°
28
70°
49°
29
70°
55°
30
71°
53°
31
76°
55°
1
75°
54°
2
75°
54°
3
74°
53°
4
75°
54°
5
75°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mount Washington
Mount Washington's August 2026 forecast shows daily high temperatures ranging from 70° to 85°, with overnight lows between 49° and 59°. The average high for August is 76° with an average low of 56°. 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 Mount Washington. See also: September | October | November.
