S
M
T
W
T
F
S
31
80°
60°
1
82°
56°
2
83°
50°
3
85°
61°
4
89°
69°
5
84°
69°
6
85°
65°
7
85°
65°
8
80°
66°
9
84°
65°
10
86°
66°
11
87°
65°
12
87°
70°
13
86°
65°
14
87°
66°
15
87°
69°
16
82°
63°
17
84°
67°
18
82°
66°
19
84°
67°
20
82°
66°
21
79°
60°
22
78°
60°
23
79°
69°
24
87°
70°
25
87°
68°
26
84°
63°
27
79°
66°
28
80°
66°
29
82°
68°
30
84°
67°
1
84°
68°
2
85°
69°
3
87°
69°
4
86°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Port Byron
Port Byron's June 2026 forecast shows daily high temperatures ranging from 78° to 89°, with overnight lows between 60° and 70°. The average high for June is 84° with an average low of 66°. 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 Port Byron. See also: July | August | September.
