S
M
T
W
T
F
S
28
90°
70°
29
88°
68°
30
93°
66°
1
96°
69°
2
92°
68°
3
92°
70°
4
89°
68°
5
85°
69°
6
88°
67°
7
83°
68°
8
84°
69°
9
84°
70°
10
85°
68°
11
85°
68°
12
87°
71°
13
89°
71°
14
88°
70°
15
87°
71°
16
86°
68°
17
86°
68°
18
87°
70°
19
86°
69°
20
87°
70°
21
89°
71°
22
90°
71°
23
86°
70°
24
85°
70°
25
85°
69°
26
86°
71°
27
87°
71°
28
85°
70°
29
85°
71°
30
86°
71°
31
88°
70°
1
90°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Duncan
Duncan's July 2026 forecast shows daily high temperatures ranging from 83° to 96°, with overnight lows between 66° and 71°. The average high for July is 87° with an average low of 69°. 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 Duncan. See also: August | September | October.
