S
M
T
W
T
F
S
26
83°
62°
27
84°
62°
28
85°
70°
29
91°
65°
30
94°
61°
31
84°
63°
1
86°
62°
2
84°
61°
3
82°
59°
4
83°
61°
5
84°
62°
6
84°
64°
7
86°
64°
8
88°
62°
9
90°
60°
10
86°
66°
11
91°
69°
12
92°
67°
13
93°
60°
14
88°
66°
15
90°
68°
16
90°
64°
17
89°
59°
18
82°
59°
19
81°
58°
20
84°
61°
21
88°
58°
22
81°
57°
23
81°
58°
24
82°
60°
25
87°
65°
26
88°
66°
27
87°
67°
28
90°
57°
29
88°
63°
30
87°
60°
31
84°
59°
1
78°
61°
2
79°
54°
3
78°
55°
4
78°
62°
5
79°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Cortland
Cortland's August 2026 forecast shows daily high temperatures ranging from 78° to 94°, with overnight lows between 54° and 70°. The average high for August is 85° with an average low of 62°. 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 Cortland. See also: September | October | November.
