S
M
T
W
T
F
S
28
84°
66°
29
86°
66°
30
90°
69°
1
98°
70°
2
99°
67°
3
99°
68°
4
99°
68°
5
98°
70°
6
92°
67°
7
88°
67°
8
87°
66°
9
89°
66°
10
92°
68°
11
91°
66°
12
90°
65°
13
87°
66°
14
88°
65°
15
90°
66°
16
92°
63°
17
89°
63°
18
88°
65°
19
89°
67°
20
90°
67°
21
85°
66°
22
87°
66°
23
87°
67°
24
90°
67°
25
90°
66°
26
89°
67°
27
89°
67°
28
88°
66°
29
89°
67°
30
90°
68°
31
89°
68°
1
88°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Preston
Preston's July 2026 forecast shows daily high temperatures ranging from 85° to 99°, with overnight lows between 63° and 70°. The average high for July is 90° with an average low of 67°. 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 Preston. See also: August | September | October.
