UV Index for Altoona, WI

Current Altoona UV Index

0 (Low)

Last Updated 56 minutes ago

Hourly Altoona UV Index

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

5 Day Hourly Altoona UV Index Forecast

Last Updated 14 hours ago

The UV index forecast for the next five days in Altoona, WI has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Altoona over the next five days will be 9.6 on Wednesday, July 2nd at 1:00 pm.

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

Time UV Index Risk
4am 0
Low
5am 0
Low
6am 0.1
Low
7am 0.4
Low
8am 1.2
Low
9am 2.6
Low
10am 4.5
Moderate
11am 6.3
High
12pm 7.8
High
1pm 8.5
Very High
2pm 8.3
Very High
3pm 7
High
4pm 5.1
Moderate
5pm 3.3
Moderate
6pm 1.6
Low
7pm 0.6
Low
8pm 0.2
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, July 2nd in Altoona, 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 0.5
Low
8am 1.4
Low
9am 3
Moderate
10am 5.1
Moderate
11am 7.3
High
12pm 9
Very High
1pm 9.6
Very High
2pm 9.2
Very High
3pm 7.7
High
4pm 5.6
Moderate
5pm 3.2
Moderate
6pm 1.6
Low
7pm 0.6
Low
8pm 0.2
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, July 3rd in Altoona, 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 0.5
Low
8am 1.4
Low
9am 3
Moderate
10am 5
Moderate
11am 7.1
High
12pm 8.8
Very High
1pm 9.4
Very High
2pm 9.1
Very High
3pm 7.1
High
4pm 3.2
Moderate
5pm 2.9
Low
6pm 1.7
Low
7pm 0.6
Low
8pm 0.1
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, July 4th in Altoona, 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 0.4
Low