UV Index for May, IL

Current May UV Index

0 (Low)

Last Updated 12 minutes ago

Hourly May UV Index

The hourly May, IL UV Index forecast for Saturday, October 4th, 2025.

5 Day Hourly May UV Index Forecast

Last Updated 6 hours ago

The UV index forecast for the next five days in May, IL has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in May over the next five days will be 5.4 on Sunday, October 5th at 1:00 pm.

The UV index forecast for Saturday, October 4th in May, IL is below.

Time UV Index Risk
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, October 5th in May, 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 0.2
Low
9am 0.9
Low
10am 2.2
Low
11am 3.6
Moderate
12pm 4.9
Moderate
1pm 5.4
Moderate
2pm 4.8
Moderate
3pm 3.5
Moderate
4pm 2
Low
5pm 0.8
Low
6pm 0.2
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, October 6th in May, 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 0.2
Low
9am 0.7
Low
10am 1.1
Low
11am 2
Low
12pm 4.3
Moderate
1pm 4.9
Moderate
2pm 4.4
Moderate
3pm 3.2
Moderate
4pm 1.8
Low
5pm 0.3
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, October 7th in May, 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 0.1
Low
9am 0.5
Low
10am 0.3
Low
11am 0.5
Low
12pm 0.8
Low
1pm 1.4
Low
2pm 0.9
Low
3pm 0.6
Low
4pm 0.3
Low
5pm 0.1
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, October 8th in May, 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