S
M
T
W
T
F
S
26
84°
56°
27
84°
58°
28
81°
62°
29
75°
64°
30
80°
62°
31
81°
65°
1
84°
62°
2
80°
66°
3
80°
66°
4
86°
58°
5
87°
64°
6
85°
68°
7
82°
65°
8
80°
66°
9
88°
67°
10
85°
65°
11
81°
63°
12
76°
59°
13
77°
58°
14
74°
57°
15
75°
57°
16
77°
56°
17
76°
61°
18
74°
56°
19
74°
55°
20
76°
55°
21
73°
53°
22
74°
60°
23
80°
60°
24
77°
59°
25
74°
59°
26
80°
58°
27
78°
58°
28
72°
59°
29
79°
58°
30
78°
59°
31
79°
57°
1
72°
54°
2
70°
54°
3
70°
53°
4
71°
49°
5
73°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Plattsburgh
Plattsburgh's August 2026 forecast shows daily high temperatures ranging from 70° to 88°, with overnight lows between 49° and 68°. The average high for August is 77° with an average low of 59°. 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 Plattsburgh. See also: September | October | November.
