UV Index for Williams Bay, WI

Current Williams Bay UV Index

0 (Low)

Last Updated 39 minutes ago

Hourly Williams Bay UV Index

The hourly Williams Bay, WI UV Index forecast for Tuesday, July 1st, 2025.

5 Day Hourly Williams Bay UV Index Forecast

Last Updated 16 hours ago

The UV index forecast for the next five days in Williams Bay, WI has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Williams Bay over the next five days will be 10 on Wednesday, July 2nd at 1:00 pm.

The UV index forecast for Tuesday, July 1st in Williams Bay, WI is below.

Time UV Index Risk
6am 0.1
Low
7am 0.5
Low
8am 1.4
Low
9am 3
Moderate
10am 5
Moderate
11am 6.9
High
12pm 8.4
Very High
1pm 8.9
Very High
2pm 8.3
Very High
3pm 6.8
High
4pm 4.8
Moderate
5pm 2.8
Low
6pm 1.3
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, July 2nd in Williams Bay, WI 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 0.1
Low
7am 0.6
Low
8am 1.6
Low
9am 3.3
Moderate
10am 5.6
Moderate
11am 7.8
High
12pm 9.4
Very High
1pm 10
Very High
2pm 9.3
Very High
3pm 5.1
Moderate
4pm 1.8
Low
5pm 2
Low
6pm 0.7
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, July 3rd in Williams Bay, WI 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 0.1
Low
7am 0.6
Low
8am 1.6
Low
9am 3.2
Moderate
10am 4.7
Moderate
11am 5.1
Moderate
12pm 5.6
Moderate
1pm 6.4
High
2pm 8.6
Very High
3pm 7.4
High
4pm 5.2
Moderate
5pm 3.1
Moderate
6pm 1.4
Low
7pm 0.5
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, July 4th in Williams Bay, WI 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 0.1
Low
7am 0.5
Low