S
M
T
W
T
F
S
26
91°
65°
27
93°
67°
28
94°
68°
29
95°
70°
30
95°
70°
31
94°
69°
1
94°
69°
2
93°
68°
3
94°
69°
4
94°
68°
5
93°
69°
6
94°
68°
7
90°
62°
8
92°
64°
9
93°
62°
10
93°
65°
11
92°
68°
12
92°
68°
13
91°
67°
14
88°
67°
15
85°
64°
16
84°
61°
17
86°
65°
18
86°
64°
19
89°
66°
20
89°
64°
21
94°
64°
22
93°
63°
23
92°
64°
24
90°
65°
25
89°
61°
26
85°
60°
27
82°
58°
28
81°
62°
29
85°
61°
30
81°
58°
31
80°
61°
1
81°
62°
2
81°
59°
3
84°
56°
4
79°
54°
5
78°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Syracuse
Syracuse's August 2026 forecast shows daily high temperatures ranging from 78° to 95°, with overnight lows between 53° and 70°. The average high for August is 89° with an average low of 64°. 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 Syracuse. See also: September | October | November.