S
M
T
W
T
F
S
28
91°
59°
29
90°
58°
30
90°
59°
1
89°
59°
2
88°
58°
3
84°
56°
4
84°
55°
5
85°
55°
6
83°
56°
7
84°
57°
8
84°
56°
9
85°
57°
10
91°
58°
11
91°
55°
12
89°
53°
13
87°
56°
14
88°
58°
15
86°
59°
16
90°
59°
17
91°
58°
18
90°
60°
19
91°
60°
20
92°
59°
21
92°
60°
22
93°
59°
23
92°
59°
24
92°
58°
25
91°
55°
26
90°
55°
27
88°
54°
28
88°
55°
29
90°
58°
30
90°
59°
31
91°
59°
1
91°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in St. Helena
St. Helena's July 2026 forecast shows daily high temperatures ranging from 83° to 93°, with overnight lows between 53° and 60°. The average high for July is 89° with an average low of 57°. 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. Helena. See also: August | September | October.
