UV Index for St. Clair County, Illinois

UV Index Forecast for St. Clair County, Illinois

Below is an interactive map of St. Clair County, il, USA. The markers on the map identify large, populated cities in St. Clair 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 (8:00 am) in St. Clair County, il is Swansea at 1.2. Today, the peak UV index for St. Clair County will be in East St. Louis, il around 1:00 pm at 9.4 (Very High). Over the next five days the peak UV index in St. Clair County will be 10.3 (Very High) and will occur on Tuesday, May 31st in East St. Louis, il around 1:00 pm.

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

Last Updated 41 minutes ago

UV Index Forecast by City in St. Clair County

Below is a list of cities in St. Clair 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.