S
M
T
W
T
F
S
28
83°
67°
29
82°
64°
30
82°
62°
1
83°
68°
2
85°
69°
3
83°
70°
4
83°
69°
5
85°
69°
6
89°
70°
7
90°
70°
8
90°
69°
9
89°
70°
10
91°
71°
11
90°
69°
12
87°
70°
13
88°
70°
14
84°
68°
15
84°
69°
16
88°
70°
17
88°
70°
18
83°
68°
19
84°
64°
20
83°
64°
21
83°
63°
22
84°
69°
23
83°
69°
24
85°
68°
25
85°
68°
26
87°
70°
27
85°
61°
28
85°
62°
29
87°
68°
30
91°
66°
31
92°
65°
1
87°
67°
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 82° to 92°, with overnight lows between 61° and 71°. The average high for July is 86° with an average low of 68°. 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.
