S
M
T
W
T
F
S
31
79°
64°
1
79°
61°
2
80°
63°
3
79°
64°
4
80°
63°
5
83°
63°
6
88°
63°
7
83°
64°
8
85°
66°
9
89°
64°
10
87°
67°
11
90°
68°
12
91°
69°
13
91°
68°
14
90°
68°
15
91°
67°
16
88°
67°
17
88°
68°
18
91°
69°
19
87°
69°
20
91°
66°
21
92°
70°
22
92°
65°
23
91°
64°
24
91°
66°
25
92°
70°
26
93°
68°
27
92°
67°
28
86°
69°
29
87°
70°
30
89°
71°
1
87°
71°
2
87°
70°
3
88°
71°
4
94°
69°
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 79° to 94°, with overnight lows between 61° and 71°. The average high for June is 88° with an average low of 67°. 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.
