UV Index Forecast for Jefferson County, Illinois
Below is an interactive map of Jefferson County, il, USA. The markers on the map identify large, populated cities in Jefferson 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 pm) in Jefferson County, il is Grand Prairie at 0. Today, the peak UV index for Jefferson County will be in Mount Vernon, il around 1:00 pm at 5.9 (Moderate). Over the next five days the peak UV index in Jefferson County will be 7.7 (High) and will occur on Thursday, April 25th in Mount Vernon, 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 23 minutes ago
UV Index Forecast by City in Jefferson County
Below is a list of cities in Jefferson 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.