Howard County, MD: Current UV Index and Hourly Forecast

As of 5:08 PM EDT on May 20, 2026, all 10 cities in Howard County, MD in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Columbia, MD with a reading of 3.

Over the next 24 hours, the highest UV Index reading in Howard County, MD is expected to be 3 in Columbia between 5:00 PM - 6:00 PM EDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Howard County, MD as of 5:08 PM EDT, May 20, 2026

Current UV Index in Cities in Howard County, MD

5:08 PM EDT, May 20, 2026