S
M
T
W
T
F
S
31
69°
50°
1
70°
48°
2
65°
47°
3
68°
50°
4
71°
52°
5
72°
52°
6
69°
51°
7
63°
50°
8
64°
49°
9
65°
53°
10
70°
55°
11
73°
54°
12
69°
50°
13
65°
48°
14
65°
50°
15
66°
49°
16
65°
47°
17
66°
55°
18
68°
51°
19
71°
49°
20
74°
51°
21
76°
50°
22
77°
55°
23
76°
49°
24
71°
50°
25
69°
52°
26
68°
54°
27
70°
57°
28
74°
50°
29
74°
56°
30
78°
51°
1
72°
50°
2
71°
51°
3
73°
53°
4
71°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Duncan
Duncan's June 2026 forecast shows daily high temperatures ranging from 63° to 78°, with overnight lows between 47° and 57°. The average high for June is 70° with an average low of 51°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Duncan. See also: July | August | September.
