S
M
T
W
T
F
S
28
95°
77°
29
96°
80°
30
94°
76°
1
95°
76°
2
95°
77°
3
97°
76°
4
99°
77°
5
97°
74°
6
98°
71°
7
99°
74°
8
100°
78°
9
100°
77°
10
98°
78°
11
97°
79°
12
95°
73°
13
87°
73°
14
91°
74°
15
88°
75°
16
93°
77°
17
96°
78°
18
99°
77°
19
100°
77°
20
100°
76°
21
99°
78°
22
97°
76°
23
99°
79°
24
99°
79°
25
98°
80°
26
99°
80°
27
100°
79°
28
100°
80°
29
99°
80°
30
100°
79°
31
100°
80°
1
99°
80°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Duncanville
Duncanville's July 2026 forecast shows daily high temperatures ranging from 87° to 100°, with overnight lows between 73° and 80°. The average high for July is 97° with an average low of 78°. 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 Duncanville. See also: August | September | October.
