UV Index for Willow Lake, SD

Current Willow Lake UV Index

0 (Low)

Last Updated 41 minutes ago

Hourly Willow Lake UV Index

The hourly Willow Lake, SD UV Index forecast for Thursday, October 16th, 2025.

5 Day Hourly Willow Lake UV Index Forecast

Last Updated 16 hours ago

The UV index forecast for the next five days in Willow Lake, SD has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Willow Lake over the next five days will be 3.1 on Friday, October 17th at 1:00 pm.

The UV index forecast for Thursday, October 16th in Willow Lake, SD is below.

Time UV Index Risk
6am 0
Low
7am 0
Low
8am 0
Low
9am 0
Low
10am 0.3
Low
11am 0.6
Low
12pm 1.7
Low
1pm 1.8
Low
2pm 2
Low
3pm 1.8
Low
4pm 0.4
Low
5pm 0.4
Low
6pm 0.2
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, October 17th in Willow Lake, SD 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 0.8
Low
11am 1.7
Low
12pm 2.6
Low
1pm 3.1
Moderate
2pm 3
Moderate
3pm 2.5
Low
4pm 1.6
Low
5pm 0.8
Low
6pm 0.2
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, October 18th in Willow Lake, SD 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 0.7
Low
11am 1.5
Low
12pm 2.1
Low
1pm 2.9
Low
2pm 2.9
Low
3pm 2.4
Low
4pm 1.5
Low
5pm 0.7
Low
6pm 0.2
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, October 19th in Willow Lake, SD 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