Jefferson County, ID: Current UV Index and Hourly Forecast

As of 4:44 PM MDT on July 18, 2025, out of 7 cities in Jefferson County, ID in our database, 4 cities (57%) have a UV Index reading of Moderate, 2 cities (29%) have a UV Index reading of High, while 1 city (14%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Mud Lake, ID with a reading of 6.4.

Over the next 24 hours, the highest UV Index reading in Jefferson County, ID is expected to be 9.8 in Ririe between 1:00 PM - 2:00 PM MDT tomorrow.

Search Cities in Jefferson County, ID

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Jefferson County, ID as of 4:44 PM MDT, July 18, 2025

Current UV Index in Cities in Jefferson County, ID

4:44 PM MDT, July 18, 2025