S
M
T
W
T
F
S
28
85°
69°
29
94°
74°
30
93°
71°
1
91°
70°
2
91°
70°
3
87°
65°
4
85°
64°
5
85°
63°
6
84°
62°
7
79°
60°
8
79°
61°
9
80°
63°
10
80°
66°
11
84°
66°
12
82°
65°
13
82°
65°
14
81°
66°
15
80°
65°
16
80°
63°
17
81°
63°
18
81°
64°
19
82°
66°
20
82°
60°
21
78°
61°
22
79°
61°
23
80°
63°
24
82°
65°
25
84°
67°
26
84°
67°
27
80°
64°
28
79°
62°
29
80°
63°
30
85°
68°
31
86°
67°
1
83°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Addison
Addison's July 2026 forecast shows daily high temperatures ranging from 78° to 94°, with overnight lows between 60° and 74°. The average high for July is 83° with an average low of 65°. 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 Addison. See also: August | September | October.