St. Clair County, MI: Current UV Index and Hourly Forecast

As of 1:38 AM EST on March 4, 2026, all 11 cities in St. Clair County, MI in our database have a UV Index reading of 0, indicating no radiation from the sun.

Over the next 24 hours, the highest UV Index reading in St. Clair County, MI is expected to be 3.5 in St. Clair between 12:00 PM - 1:00 PM EST today.

Search Cities in St. Clair County, MI

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in St. Clair County, MI as of 1:38 AM EST, March 4, 2026

Current UV Index in Cities in St. Clair County, MI

1:38 AM EST, March 4, 2026