UV Index for Port Byron, IL

Current Port Byron UV Index

0 (Low)

Last Updated 4 minutes ago

Hourly Port Byron UV Index

The hourly Port Byron, IL UV Index forecast for Saturday, February 21st, 2026.

5 Day Hourly Port Byron UV Index Forecast

Last Updated 15 hours ago

The UV index forecast for the next five days in Port Byron, IL has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Port Byron over the next five days will be 2.8 on Monday, February 23rd at 12:00 pm.

The UV index forecast for Saturday, February 21st in Port Byron, IL is below.

Time UV Index Risk
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.4
Low
9am 0.9
Low
10am 1.3
Low
11am 1.8
Low
12pm 2.2
Low
1pm 2.2
Low
2pm 1.6
Low
3pm 0.9
Low
4pm 0.4
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, February 22nd in Port Byron, IL is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.3
Low
9am 0.8
Low
10am 1.3
Low
11am 1.9
Low
12pm 2.2
Low
1pm 2
Low
2pm 1.5
Low
3pm 0.8
Low
4pm 0.3
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, February 23rd in Port Byron, IL is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.4
Low
9am 1
Low
10am 1.8
Low
11am 2.5
Low
12pm 2.8
Low
1pm 2.6
Low
2pm 1.9
Low
3pm 1.1
Low
4pm 0.4
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, February 24th in Port Byron, IL is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low