UV Index for Sumner, WI

Current Sumner UV Index

1.6 (Low)

Last Updated 38 minutes ago

Hourly Sumner UV Index

The hourly Sumner, WI UV Index forecast for Thursday, October 23rd, 2025.

5 Day Hourly Sumner UV Index Forecast

Last Updated 22 hours ago

The UV index forecast for the next five days in Sumner, WI has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Sumner over the next five days will be 2.8 on Friday, October 24th at 1:00 pm.

The UV index forecast for Thursday, October 23rd in Sumner, WI is below.

Time UV Index Risk
12pm 2.2
Low
1pm 2.5
Low
2pm 2.3
Low
3pm 1.7
Low
4pm 1
Low
5pm 0.4
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, October 24th in Sumner, 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
Low
7am 0
Low
8am 0
Low
9am 0.3
Low
10am 0.9
Low
11am 1.7
Low
12pm 2.5
Low
1pm 2.8
Low
2pm 2.5
Low
3pm 1.8
Low
4pm 1
Low
5pm 0.4
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, October 25th in Sumner, 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
Low
7am 0
Low
8am 0
Low
9am 0
Low
10am 0.2
Low
11am 0.4
Low
12pm 1.2
Low
1pm 1
Low
2pm 0.8
Low
3pm 0.9
Low
4pm 0.4
Low
5pm 0.2
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, October 26th in Sumner, 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
Low
7am 0
Low