S
M
T
W
T
F
S
31
85°
48°
1
92°
51°
2
84°
52°
3
92°
51°
4
92°
53°
5
94°
54°
6
84°
56°
7
84°
47°
8
81°
49°
9
84°
55°
10
100°
58°
11
106°
65°
12
97°
58°
13
95°
55°
14
90°
57°
15
92°
56°
16
89°
55°
17
84°
56°
18
79°
57°
19
74°
58°
20
82°
58°
21
87°
52°
22
85°
52°
23
87°
51°
24
86°
50°
25
86°
55°
26
81°
53°
27
81°
58°
28
88°
49°
29
91°
52°
30
83°
55°
1
82°
56°
2
86°
52°
3
91°
54°
4
91°
53°
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 86° to 91°, with overnight lows between 52° and 54°. The average high for June is 89° with an average low of 53°. 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.
