S
M
T
W
T
F
S
28
76°
53°
29
80°
58°
30
83°
66°
1
88°
67°
2
86°
68°
3
86°
64°
4
81°
62°
5
80°
60°
6
80°
60°
7
76°
59°
8
79°
60°
9
80°
61°
10
81°
55°
11
74°
59°
12
75°
58°
13
72°
52°
14
69°
52°
15
70°
53°
16
71°
54°
17
71°
54°
18
73°
58°
19
75°
59°
20
78°
60°
21
79°
60°
22
79°
59°
23
78°
60°
24
78°
59°
25
79°
60°
26
80°
61°
27
81°
61°
28
80°
60°
29
79°
59°
30
78°
56°
31
71°
52°
1
70°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Derby Line
Derby Line's July 2026 forecast shows daily high temperatures ranging from 69° to 88°, with overnight lows between 51° and 68°. The average high for July is 78° with an average low of 59°. 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 Derby Line. See also: August | September | October.
