S
M
T
W
T
F
S
28
81°
61°
29
N/A
30
74°
58°
1
74°
60°
2
77°
54°
3
76°
60°
4
77°
58°
5
72°
56°
6
80°
61°
7
82°
63°
8
80°
62°
9
82°
61°
10
83°
63°
11
86°
65°
12
72°
58°
13
73°
59°
14
72°
59°
15
71°
58°
16
71°
59°
17
73°
60°
18
73°
59°
19
70°
59°
20
68°
60°
21
70°
60°
22
73°
61°
23
73°
61°
24
74°
60°
25
74°
60°
26
75°
61°
27
74°
61°
28
75°
60°
29
75°
62°
30
74°
62°
31
76°
61°
1
76°
62°
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 68° to 86°, with overnight lows between 54° and 65°. 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.
