UV Index for Alton, IN

Current Alton UV Index

0 (Low)

Last Updated 21 minutes ago

Hourly Alton UV Index

The hourly Alton, IN UV Index forecast for Monday, December 22nd, 2025.

5 Day Hourly Alton UV Index Forecast

Last Updated 8 hours ago

The UV index forecast for the next five days in Alton, IN has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Alton over the next five days will be 2.3 on Monday, December 22nd at 1:00 pm.

The UV index forecast for Monday, December 22nd in Alton, IN is below.

Time UV Index Risk
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, December 23rd in Alton, IN 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 0.1
Low
11am 0.4
Low
12pm 0.4
Low
1pm 0.4
Low
2pm 0.3
Low
3pm 0.2
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 24th in Alton, IN 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 0.1
Low
10am 0.2
Low
11am 0.5
Low
12pm 0.7
Low
1pm 0.7
Low
2pm 0.8
Low
3pm 0.5
Low
4pm 0.2
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 25th in Alton, IN 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 2.2
Low
1pm 2.2
Low
2pm 1.9
Low
3pm 1.1
Low
4pm 0.6
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 26th in Alton, IN 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