S
M
T
W
T
F
S
28
68°
46°
29
67°
45°
30
68°
48°
1
67°
46°
2
67°
44°
3
68°
52°
4
69°
53°
5
76°
48°
6
77°
47°
7
74°
46°
8
76°
48°
9
77°
53°
10
74°
53°
11
70°
55°
12
71°
53°
13
69°
51°
14
68°
47°
15
69°
48°
16
71°
48°
17
76°
49°
18
78°
48°
19
78°
48°
20
80°
54°
21
79°
49°
22
73°
47°
23
74°
51°
24
73°
50°
25
78°
54°
26
80°
54°
27
75°
47°
28
72°
47°
29
80°
53°
30
80°
52°
31
Hist. Avg.
66°
46°
1
Hist. Avg.
66°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Duncan
Duncan's July 2026 forecast shows daily high temperatures ranging from 67° to 80°, with overnight lows between 44° and 55°. The average high for July is 73° with an average low of 50°. 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.
