S
M
T
W
T
F
S
31
70°
41°
1
85°
52°
2
88°
54°
3
70°
49°
4
70°
48°
5
65°
49°
6
64°
45°
7
72°
46°
8
73°
50°
9
73°
51°
10
76°
52°
11
77°
50°
12
84°
54°
13
86°
54°
14
84°
53°
15
73°
48°
16
69°
48°
17
78°
54°
18
75°
52°
19
68°
47°
20
74°
49°
21
77°
54°
22
80°
54°
23
77°
48°
24
69°
48°
25
73°
49°
26
78°
48°
27
70°
47°
28
69°
49°
29
72°
48°
30
79°
50°
1
73°
48°
2
79°
54°
3
82°
56°
4
83°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Forest Grove-Cornelius
Forest Grove-Cornelius's June 2026 forecast shows daily high temperatures ranging from 64° to 88°, with overnight lows between 45° and 56°. The average high for June is 75° 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 Forest Grove-Cornelius. See also: July | August | September.
