UV Index for Decorah, IA

Current Decorah UV Index

0 (Low)

Last Updated 47 minutes ago

Hourly Decorah UV Index

The hourly Decorah, IA UV Index forecast for Tuesday, December 9th, 2025.

5 Day Hourly Decorah UV Index Forecast

Last Updated 12 hours ago

The UV index forecast for the next five days in Decorah, IA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Decorah over the next five days will be 1.8 on Wednesday, December 10th at 12:00 pm.

The UV index forecast for Tuesday, December 9th in Decorah, IA is below.

Time UV Index Risk
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 0.8
Low
11am 1.1
Low
12pm 1.3
Low
1pm 1.2
Low
2pm 0.9
Low
3pm 0.4
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 Wednesday, December 10th in Decorah, IA 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
Low
11am 1.5
Low
12pm 1.8
Low
1pm 1.7
Low
2pm 1.1
Low
3pm 0.5
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 Thursday, December 11th in Decorah, IA 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 0.7
Low
11am 1.4
Low
12pm 1.3
Low
1pm 1.2
Low
2pm 0.9
Low
3pm 0.5
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 Friday, December 12th in Decorah, IA 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