S
M
T
W
T
F
S
28
66°
59°
29
64°
59°
30
66°
59°
1
64°
59°
2
68°
54°
3
66°
52°
4
68°
59°
5
70°
54°
6
75°
54°
7
81°
57°
8
79°
55°
9
79°
57°
10
82°
63°
11
N/A
12
84°
66°
13
81°
63°
14
78°
66°
15
78°
64°
16
77°
64°
17
74°
63°
18
72°
62°
19
71°
59°
20
71°
59°
21
70°
60°
22
72°
60°
23
70°
59°
24
71°
60°
25
66°
62°
26
64°
61°
27
64°
62°
28
65°
62°
29
66°
61°
30
67°
62°
31
67°
62°
1
66°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in St Erth
St Erth's July 2026 forecast shows daily high temperatures ranging from 64° to 84°, with overnight lows between 59° and 66°. The average high for July is 71° with an average low of 62°. 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 St Erth. See also: August | September | October.
