S
M
T
W
T
F
S
26
88°
68°
27
87°
70°
28
86°
69°
29
85°
66°
30
86°
70°
31
91°
71°
1
89°
70°
2
89°
70°
3
90°
69°
4
91°
71°
5
90°
70°
6
86°
69°
7
82°
65°
8
83°
64°
9
83°
65°
10
84°
66°
11
82°
64°
12
83°
66°
13
84°
69°
14
86°
70°
15
87°
69°
16
87°
70°
17
86°
70°
18
86°
69°
19
87°
69°
20
87°
68°
21
81°
68°
22
82°
66°
23
81°
68°
24
81°
68°
25
82°
67°
26
83°
68°
27
82°
67°
28
89°
65°
29
87°
64°
30
84°
60°
31
85°
63°
1
88°
65°
2
87°
64°
3
87°
63°
4
82°
64°
5
83°
62°
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 81° to 91°, with overnight lows between 60° and 71°. The average high for August is 85° with an average low of 67°. 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.
