UV Index for Lake Forest, IL

Current Lake Forest UV Index

0 (Low)

Last Updated 17 minutes ago

Hourly Lake Forest UV Index

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

5 Day Hourly Lake Forest UV Index Forecast

Last Updated 6 hours ago

The UV index forecast for the next five days in Lake Forest, IL has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Lake Forest over the next five days will be 5.4 on Saturday, October 4th at 1:00 pm.

The UV index forecast for Saturday, October 4th in Lake Forest, 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 Lake Forest, 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 1
Low
10am 2.2
Low
11am 3.8
Moderate
12pm 5
Moderate
1pm 5.3
Moderate
2pm 4.7
Moderate
3pm 3.3
Moderate
4pm 1.8
Low
5pm 0.7
Low
6pm 0.1
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 Lake Forest, 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
Low
11am 3.4
Moderate
12pm 4.4
Moderate
1pm 4.8
Moderate
2pm 4.2
Moderate
3pm 3
Moderate
4pm 1.6
Low
5pm 0.5
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 Lake Forest, 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
Low
9am 0.2
Low
10am 0.6
Low
11am 0.8
Low
12pm 1
Low
1pm 0.9
Low
2pm 0.7
Low
3pm 0.4
Low
4pm 0.2
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 Wednesday, October 8th in Lake Forest, 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