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
84°
72°
10
84°
68°
11
84°
65°
12
84°
63°
13
87°
65°
14
94°
70°
15
98°
68°
16
92°
67°
17
89°
66°
18
86°
67°
19
82°
64°
20
84°
64°
21
84°
63°
22
83°
64°
23
82°
63°
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 82° to 98°, with overnight lows between 63° and 70°. The average high for July is 86° 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.
