S
M
T
W
T
F
S
28
81°
61°
29
73°
50°
30
79°
61°
1
75°
57°
2
75°
55°
3
75°
50°
4
75°
60°
5
78°
61°
6
84°
60°
7
84°
60°
8
81°
62°
9
81°
64°
10
78°
63°
11
83°
63°
12
80°
60°
13
79°
61°
14
76°
61°
15
77°
62°
16
78°
61°
17
72°
59°
18
73°
60°
19
72°
58°
20
67°
55°
21
71°
60°
22
71°
58°
23
69°
58°
24
71°
60°
25
71°
60°
26
70°
59°
27
69°
57°
28
72°
61°
29
73°
61°
30
72°
60°
31
71°
58°
1
71°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Leiston
Leiston's July 2026 forecast shows daily high temperatures ranging from 67° to 84°, with overnight lows between 55° and 64°. The average high for July is 75° 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 Leiston. See also: August | September | October.
