UV Index for Harristown, IL

Current Harristown UV Index

0 (Low)

Last Updated 41 minutes ago

Hourly Harristown UV Index

The hourly Harristown, IL UV Index forecast for Thursday, December 18th, 2025.

5 Day Hourly Harristown UV Index Forecast

Last Updated 7 hours ago

The UV index forecast for the next five days in Harristown, IL has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Harristown over the next five days will be 1.9 on Sunday, December 21st at 12:00 pm.

The UV index forecast for Thursday, December 18th in Harristown, IL is below.

Time UV Index Risk
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, December 19th in Harristown, IL 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 0.1
Low
9am 0.5
Low
10am 1
Low
11am 1.5
Low
12pm 1.8
Low
1pm 1.5
Low
2pm 1
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 Saturday, December 20th in Harristown, IL 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 0.1
Low
9am 0.5
Low
10am 1
Low
11am 1.4
Low
12pm 1.5
Low
1pm 1.5
Low
2pm 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 Sunday, December 21st in Harristown, IL 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 0.2
Low
9am 0.5
Low
10am 1.1
Low
11am 1.6
Low
12pm 1.9
Low
1pm 1.5
Low
2pm 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 Monday, December 22nd in Harristown, IL 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