S
M
T
W
T
F
S
31
85°
48°
1
89°
54°
2
85°
52°
3
95°
54°
4
94°
54°
5
94°
53°
6
88°
51°
7
89°
56°
8
90°
56°
9
94°
58°
10
95°
57°
11
91°
58°
12
90°
57°
13
90°
56°
14
85°
54°
15
86°
58°
16
89°
59°
17
89°
58°
18
88°
58°
19
89°
56°
20
88°
57°
21
89°
58°
22
89°
58°
23
88°
57°
24
89°
58°
25
89°
58°
26
87°
57°
27
85°
56°
28
89°
58°
29
90°
58°
30
89°
59°
1
90°
59°
2
89°
58°
3
90°
59°
4
90°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in St. Helena
St. Helena's June 2026 forecast shows daily high temperatures ranging from 85° to 95°, with overnight lows between 51° and 59°. The average high for June 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 June weather will actually feel in St. Helena. See also: July | August | September.
