S
M
T
W
T
F
S
26
88°
68°
27
88°
69°
28
86°
68°
29
85°
67°
30
83°
66°
31
79°
66°
1
80°
65°
2
82°
66°
3
85°
66°
4
80°
62°
5
79°
62°
6
78°
61°
7
84°
66°
8
78°
65°
9
84°
66°
10
83°
65°
11
83°
65°
12
84°
66°
13
85°
66°
14
85°
65°
15
80°
65°
16
77°
64°
17
78°
65°
18
80°
64°
19
83°
65°
20
83°
64°
21
75°
54°
22
74°
56°
23
75°
56°
24
74°
60°
25
76°
63°
26
78°
62°
27
77°
65°
28
85°
64°
29
86°
55°
30
81°
55°
31
76°
60°
1
75°
60°
2
76°
61°
3
82°
64°
4
85°
61°
5
83°
54°
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 74° to 88°, with overnight lows between 54° and 69°. The average high for August is 81° with an average low of 63°. 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.
