UV Index for Alto, SD

Current Alto UV Index

0 (Low)

Last Updated 25 minutes ago

Hourly Alto UV Index

The hourly Alto, SD UV Index forecast for Monday, June 16th, 2025.

5 Day Hourly Alto UV Index Forecast

Last Updated 11 hours ago

The UV index forecast for the next five days in Alto, SD has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Alto over the next five days will be 8.6 on Monday, June 16th at 2:00 pm.

The UV index forecast for Monday, June 16th in Alto, SD 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 0.2
Low
8am 0.7
Low
9am 2.1
Low
10am 2.7
Low
11am 2.8
Low
12pm 6.7
High
1pm 8.3
Very High
2pm 8.6
Very High
3pm 7.2
High
4pm 2.7
Low
5pm 3.5
Moderate
6pm 2.2
Low
7pm 1
Low
8pm 0.2
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, June 17th in Alto, 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 0.2
Low
8am 0.1
Low
9am 0.4
Low
10am 1.7
Low
11am 2.8
Low
12pm 1.6
Low
1pm 7
High
2pm 2.5
Low
3pm 3.8
Moderate
4pm 5.6
Moderate
5pm 3.9
Moderate
6pm 2.2
Low
7pm 0.9
Low
8pm 0.3
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, June 18th in Alto, 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 0.3
Low
8am 0.8
Low
9am 1.9
Low
10am 3.1
Moderate
11am 5.3
Moderate
12pm 6.4
High
1pm 7.3
High
2pm 7.8
High
3pm 6.9
High
4pm 2.8
Low
5pm 2.7
Low
6pm 1.5
Low
7pm 0.8
Low
8pm 0.3
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, June 19th in Alto, 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 0.3
Low