S
M
T
W
T
F
S
28
91°
66°
29
83°
61°
30
79°
60°
1
78°
59°
2
79°
60°
3
80°
59°
4
80°
58°
5
78°
59°
6
77°
60°
7
77°
60°
8
78°
59°
9
77°
59°
10
76°
58°
11
74°
57°
12
77°
59°
13
78°
60°
14
78°
60°
15
77°
59°
16
80°
61°
17
78°
60°
18
78°
60°
19
80°
61°
20
78°
60°
21
79°
61°
22
80°
61°
23
78°
60°
24
78°
60°
25
79°
59°
26
79°
61°
27
80°
62°
28
81°
61°
29
80°
60°
30
78°
60°
31
80°
61°
1
82°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Bad Honnef
Bad Honnef's July 2026 forecast shows daily high temperatures ranging from 74° to 91°, with overnight lows between 57° and 66°. The average high for July is 79° with an average low of 60°. 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 Bad Honnef. See also: August | September | October.