UV Index for Lake Forest, CA

Current Lake Forest UV Index

0.8 (Low)

Last Updated 25 minutes ago

Hourly Lake Forest UV Index

The hourly Lake Forest, CA UV Index forecast for Thursday, December 4th, 2025.

5 Day Hourly Lake Forest UV Index Forecast

Last Updated 5 hours ago

The UV index forecast for the next five days in Lake Forest, CA 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 3.2 on Saturday, December 6th at 12:00 pm.

The UV index forecast for Thursday, December 4th in Lake Forest, CA is below.

Time UV Index Risk
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 Friday, December 5th in Lake Forest, CA 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 2
Low
11am 2.8
Low
12pm 3.1
Moderate
1pm 2.7
Low
2pm 1.8
Low
3pm 0.8
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 Saturday, December 6th in Lake Forest, CA 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 1.1
Low
10am 2.1
Low
11am 3
Moderate
12pm 3.2
Moderate
1pm 2.8
Low
2pm 1.9
Low
3pm 0.9
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 Sunday, December 7th in Lake Forest, CA 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 1.1
Low
10am 2.1
Low
11am 3
Moderate
12pm 3.2
Moderate
1pm 2.8
Low
2pm 1.8
Low
3pm 0.8
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 Monday, December 8th in Lake Forest, CA is below.

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