Jefferson County, MO: Current UV Index and Hourly Forecast

• USA →
• Missouri →
• Jefferson County

As of 10:47 AM CST on February 22, 2025, all 25 cities in Jefferson County, MO in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Imperial, MO with a reading of 2.8.

Over the next 24 hours, the highest UV Index reading in Jefferson County, MO is expected to be 4.2 in Imperial between 12:00 PM - 1:00 PM CST today.

Search Cities in Jefferson County, MO

Current UV Index in Cities in Jefferson County, MO

• Arnold - 2.7
• Barnhart - 2.5
• Briarwood Estates - 2.5
• Byrnes Mill - 2.6
• Cedar Hill - 2.5
• Cedar Hill Lakes - 2.5
• Crystal City - 2.5
• De Soto - 2.5
• Festus - 2.5
• Herculaneum - 2.5
• High Ridge - 2.6
• Hillsboro - 2.5
• Horine - 2.5
• Imperial - 2.8
• Kimmswick - 2.8
• LaBarque Creek - 2.6
• Lake Tekakwitha - 2.6
• Murphy - 2.6
• Olympian Village - 2.5
• Parkdale - 2.6
• Peaceful Village - 2.6
• Pevely - 2.5
• Raintree Plantation - 2.5
• Scotsdale - 2.6
• Summer Set - 2.6