UV Index for Janesville, IL

Current Janesville UV Index

0.1 (Low)

Last Updated 3 minutes ago

Hourly Janesville UV Index

The hourly Janesville, IL UV Index forecast for Saturday, September 13th, 2025.

5 Day Hourly Janesville UV Index Forecast

Last Updated 5 hours ago

The UV index forecast for the next five days in Janesville, IL has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Janesville over the next five days will be 6.9 on Saturday, September 13th at 1:00 pm.

The UV index forecast for Saturday, September 13th in Janesville, IL is below.

Time UV Index Risk
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, September 14th in Janesville, 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 1.4
Low
10am 3.1
Moderate
11am 4.9
Moderate
12pm 6.2
High
1pm 6.7
High
2pm 6
High
3pm 4.6
Moderate
4pm 2.8
Low
5pm 1.2
Low
6pm 0.4
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, September 15th in Janesville, 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 0.5
Low
9am 1.5
Low
10am 3.1
Moderate
11am 5
Moderate
12pm 6.4
High
1pm 6.8
High
2pm 6.2
High
3pm 4.6
Moderate
4pm 2.8
Low
5pm 1.2
Low
6pm 0.4
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, September 16th in Janesville, 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 1.4
Low
10am 3
Moderate
11am 4.7
Moderate
12pm 6.1
High
1pm 6.5
High
2pm 5.8
Moderate
3pm 4.3
Moderate
4pm 2.5
Low
5pm 1.2
Low
6pm 0.3
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, September 17th in Janesville, 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