UV Index for Grantsburg, WI

Current Grantsburg UV Index

0 (Low)

Last Updated 54 minutes ago

Hourly Grantsburg UV Index

The hourly Grantsburg, WI UV Index forecast for Friday, October 10th, 2025.

5 Day Hourly Grantsburg UV Index Forecast

Last Updated 17 hours ago

The UV index forecast for the next five days in Grantsburg, WI has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Grantsburg over the next five days will be 3.5 on Friday, October 10th at 1:00 pm.

The UV index forecast for Friday, October 10th in Grantsburg, WI is below.

Time UV Index Risk
7am 0
Low
8am 0
Low
9am 0.4
Low
10am 1.1
Low
11am 2.1
Low
12pm 3
Moderate
1pm 3.5
Moderate
2pm 3.3
Moderate
3pm 2.5
Low
4pm 1.5
Low
5pm 0.6
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 11th in Grantsburg, 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 0.4
Low
10am 1.1
Low
11am 2.1
Low
12pm 3
Moderate
1pm 3.5
Moderate
2pm 3.4
Moderate
3pm 2.6
Low
4pm 1.5
Low
5pm 0.6
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 12th in Grantsburg, 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 0.2
Low
10am 0.4
Low
11am 0.6
Low
12pm 0.3
Low
1pm 0.3
Low
2pm 0.6
Low
3pm 0.1
Low
4pm 0.1
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, October 13th in Grantsburg, 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