UV Index for Cortland, IL

Current Cortland UV Index

0 (Low)

Last Updated 2 minutes ago

Hourly Cortland UV Index

The hourly Cortland, IL UV Index forecast for Wednesday, October 8th, 2025.

5 Day Hourly Cortland UV Index Forecast

Last Updated 14 hours ago

The UV index forecast for the next five days in Cortland, IL has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Cortland over the next five days will be 4.6 on Wednesday, October 8th at 1:00 pm.

The UV index forecast for Wednesday, October 8th in Cortland, IL is below.

Time UV Index Risk
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.2
Low
9am 0.8
Low
10am 1.8
Low
11am 3.2
Moderate
12pm 4.2
Moderate
1pm 4.6
Moderate
2pm 4.1
Moderate
3pm 3
Moderate
4pm 1.6
Low
5pm 0.6
Low
6pm 0.1
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, October 9th in Cortland, 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 0.7
Low
10am 1.8
Low
11am 3.1
Moderate
12pm 4.2
Moderate
1pm 4.5
Moderate
2pm 4.1
Moderate
3pm 3
Moderate
4pm 1.6
Low
5pm 0.6
Low
6pm 0.1
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, October 10th in Cortland, 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 0.7
Low
10am 1.6
Low
11am 2.6
Low
12pm 4
Moderate
1pm 3.8
Moderate
2pm 2.6
Low
3pm 1.6
Low
4pm 0.8
Low
5pm 0.2
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, October 11th in Cortland, 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