UV Index in Illinois
Tuesday
02/03/2026
Current UV Index:
0
Low risk of harm
A UV index of 0 to 2 means that the danger from the Sun's UV rays to the average person is low.
UV Index Scale
0
- 2
Low risk of harm
A UV index of 0 to 2 means that the danger from the Sun's UV rays to the average person is low.
3
- 5
Medium risk of harm
A UV index of 3 to 5 means a moderate risk of harm from unprotected sun exposure.
6
- 7
High risk of harm
A UV Index of 6 to 7 means a high risk of harm from unprotected sun exposure. Skin and eye protection is essential.
8
- 10
Very high risk of harm
A UV Index of 8 to 10 means there is a very high risk of harm from unprotected sun exposure. Take extra precautions as unprotected skin and eyes are vulnerable and can burn quickly.
11+
Risk of dangerous harm
A UV Index of 11 or higher means an extremely high risk of harm from unprotected sun exposure. Take every precaution as unprotected skin and eyes can burn in minutes.
Hourly UV Index Forecast
Wear sunglasses on sunny days. In winter, reflection can double the intensity of UV rays.
If you burn easily, cover up and use sunscreen.
If you burn easily, cover up and use sunscreen.
1-2
Low
3-5
Medium
6-7
High
8-10
Very high
11+
Extremely high
Daily UV Index Forecast
02/03/2026
20o
/
32o
2.38
Medium risk of harm
02/04/2026
14o
/
28o
1.84
Low risk of harm
02/05/2026
18o
/
35o
1.83
Low risk of harm
02/06/2026
26o
/
44o
2.06
Medium risk of harm
02/07/2026
20o
/
30o
2.69
Medium risk of harm
02/08/2026
25o
/
33o
3
Medium risk of harm
02/09/2026
24o
/
46o
3
Medium risk of harm
02/10/2026
37o
/
52o
3
Medium risk of harm
