S
M
T
W
T
F
S
31
76°
48°
1
78°
49°
2
80°
51°
3
82°
50°
4
82°
50°
5
81°
49°
6
81°
53°
7
82°
53°
8
84°
52°
9
83°
51°
10
80°
51°
11
82°
53°
12
83°
53°
13
84°
52°
14
85°
51°
15
84°
49°
16
80°
49°
17
77°
48°
18
80°
49°
19
82°
51°
20
80°
49°
21
82°
49°
22
82°
50°
23
83°
49°
24
81°
51°
25
82°
54°
26
86°
52°
27
88°
52°
28
87°
51°
29
87°
50°
30
86°
49°
1
85°
48°
2
82°
49°
3
82°
49°
4
81°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Guerneville
Guerneville's June 2026 forecast shows daily high temperatures ranging from 76° to 88°, with overnight lows between 48° and 54°. The average high for June is 82° with an average low of 50°. 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 Guerneville. See also: July | August | September.
