S
M
T
W
T
F
S
26
77°
51°
27
76°
54°
28
82°
57°
29
83°
58°
30
84°
56°
31
83°
55°
1
81°
56°
2
82°
55°
3
81°
56°
4
83°
58°
5
84°
58°
6
84°
54°
7
83°
50°
8
80°
49°
9
76°
51°
10
77°
55°
11
75°
51°
12
74°
48°
13
74°
49°
14
75°
49°
15
75°
48°
16
74°
50°
17
73°
49°
18
75°
54°
19
81°
50°
20
78°
54°
21
76°
54°
22
80°
49°
23
Hist. Avg.
77°
50°
24
Hist. Avg.
77°
50°
25
Hist. Avg.
77°
50°
26
Hist. Avg.
77°
50°
27
Hist. Avg.
76°
50°
28
Hist. Avg.
76°
49°
29
Hist. Avg.
76°
49°
30
Hist. Avg.
76°
49°
31
Hist. Avg.
76°
49°
1
Hist. Avg.
76°
48°
2
Hist. Avg.
75°
48°
3
Hist. Avg.
75°
48°
4
Hist. Avg.
75°
48°
5
Hist. Avg.
75°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Mount Washington
Mount Washington's August 2026 forecast shows daily high temperatures ranging from 73° to 84°, with overnight lows between 48° and 58°. The average high for August is 79° with an average low of 53°. 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.
