S
M
T
W
T
F
S
28
81°
56°
29
82°
56°
30
86°
69°
1
95°
70°
2
92°
67°
3
86°
68°
4
80°
67°
5
79°
64°
6
80°
63°
7
80°
62°
8
82°
65°
9
85°
66°
10
80°
63°
11
80°
60°
12
81°
61°
13
83°
67°
14
84°
62°
15
79°
61°
16
79°
61°
17
78°
63°
18
79°
62°
19
81°
62°
20
79°
63°
21
73°
56°
22
74°
58°
23
74°
60°
24
75°
62°
25
76°
64°
26
74°
63°
27
75°
62°
28
77°
64°
29
80°
64°
30
78°
63°
31
78°
65°
1
81°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Oshawa
Oshawa's July 2026 forecast shows daily high temperatures ranging from 73° to 85°, with overnight lows between 56° and 67°. The average high for July is 79° 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 July weather will actually feel in Oshawa. See also: August | September | October.
