S
M
T
W
T
F
S
28
95°
73°
29
93°
70°
30
91°
72°
1
93°
70°
2
97°
68°
3
97°
70°
4
99°
73°
5
94°
73°
6
95°
75°
7
95°
72°
8
93°
73°
9
95°
75°
10
96°
74°
11
97°
73°
12
91°
69°
13
91°
71°
14
93°
69°
15
91°
70°
16
94°
71°
17
96°
68°
18
90°
72°
19
90°
71°
20
93°
73°
21
92°
72°
22
89°
70°
23
90°
71°
24
86°
72°
25
87°
71°
26
87°
71°
27
89°
72°
28
89°
72°
29
85°
71°
30
86°
72°
31
90°
72°
1
91°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Oswego
Oswego's July 2026 forecast shows daily high temperatures ranging from 85° to 99°, with overnight lows between 68° and 75°. The average high for July is 92° with an average low of 72°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Oswego. See also: August | September | October.