S
M
T
W
T
F
S
28
80°
68°
29
89°
66°
30
92°
68°
1
99°
73°
2
102°
77°
3
101°
78°
4
99°
71°
5
90°
71°
6
78°
70°
7
81°
67°
8
84°
69°
9
88°
69°
10
87°
70°
11
86°
63°
12
84°
63°
13
87°
65°
14
90°
66°
15
95°
68°
16
90°
64°
17
89°
66°
18
89°
67°
19
87°
63°
20
87°
64°
21
88°
64°
22
87°
63°
23
80°
60°
24
87°
66°
25
86°
65°
26
85°
66°
27
87°
66°
28
86°
66°
29
87°
66°
30
86°
65°
31
82°
64°
1
82°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Duncannon
Duncannon's July 2026 forecast shows daily high temperatures ranging from 80° to 95°, with overnight lows between 60° and 70°. The average high for July is 87° with an average low of 65°. 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 Duncannon. See also: August | September | October.
