UV Index for Naperville, IL

Current Naperville UV Index

0.2 (Low)

Last Updated 44 minutes ago

Hourly Naperville UV Index

The hourly Naperville, IL UV Index forecast for Monday, April 21st, 2025.

5 Day Hourly Naperville UV Index Forecast

Last Updated 18 hours ago

The UV index forecast for the next five days in Naperville, IL has no days reaching the extreme level and 1 day reaching the high or very high levels. The peak UV intensity in Naperville over the next five days will be 7.2 on Tuesday, April 22nd at 1:00 pm.

The UV index forecast for Monday, April 21st in Naperville, IL is below.

Time UV Index Risk
8am 0.2
Low
9am 0.5
Low
10am 0.8
Low
11am 1.1
Low
12pm 1.4
Low
1pm 2.9
Low
2pm 3.1
Moderate
3pm 1.9
Low
4pm 2.3
Low
5pm 0.9
Low
6pm 0.3
Low
7pm 0.1
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, April 22nd in Naperville, 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 0.2
Low
8am 0.8
Low
9am 2
Low
10am 3.7
Moderate
11am 5.4
Moderate
12pm 6.7
High
1pm 7.2
High
2pm 6.6
High
3pm 5.1
Moderate
4pm 3.2
Moderate
5pm 1.6
Low
6pm 0.6
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, April 23rd in Naperville, 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 0.2
Low
8am 0.7
Low
9am 1.8
Low
10am 3
Moderate
11am 4.2
Moderate
12pm 5
Moderate
1pm 4.4
Moderate
2pm 4.8
Moderate
3pm 2.1
Low
4pm 1.9
Low
5pm 0.8
Low
6pm 0.3
Low
7pm 0.1
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, April 24th in Naperville, 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