UV Index for Williamson County, Illinois

UV Index Forecast for Williamson County, Illinois

Below is an interactive map of Williamson County, il, USA. The markers on the map identify large, populated cities in Williamson County. If you hover over a marker, it will display the city name and the current UV index. The color of the city markers also references the current UV risk level.

The city with the highest UV index this hour (1:00 am) in Williamson County, il is Creal Springs at 0. Today, the peak UV index for Williamson County will be in Marion, il around 12:00 pm at 2.9 (Low). Over the next five days the peak UV index in Williamson County will be 3 (Moderate) and will occur on Monday, February 6th in Herrin, il around 12:00 pm.

Range 1-2 3-5 6-7 8-10 11+
Risk Low Moderate High Very High Extreme

Last Updated 33 minutes ago

UV Index Forecast by City in Williamson County

Below is a list of cities in Williamson County, il where we track and forecast the UV index. Click on a city name to get the current UV index, hourly UV index for the day and the next five days.