S
M
T
W
T
F
S
28
80°
68°
29
89°
66°
30
92°
68°
1
99°
74°
2
101°
76°
3
100°
76°
4
95°
75°
5
94°
68°
6
87°
66°
7
87°
63°
8
85°
62°
9
88°
65°
10
85°
65°
11
86°
64°
12
86°
64°
13
87°
62°
14
78°
58°
15
78°
58°
16
79°
59°
17
80°
60°
18
80°
61°
19
81°
65°
20
82°
66°
21
82°
66°
22
86°
65°
23
81°
66°
24
82°
66°
25
85°
65°
26
86°
66°
27
86°
66°
28
85°
65°
29
84°
66°
30
84°
61°
31
79°
59°
1
78°
59°
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 78° to 101°, with overnight lows between 58° and 76°. 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.
