St. John the Baptist Parish, LA: Current UV Index and Hourly Forecast

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As of 12:46 PM CDT on September 28, 2026, all 6 cities in St. John the Baptist Parish, LA in our database have a UV Index reading of High. The city with the highest UV Index reading right now is Laplace, LA with a reading of 7.1.

Over the next 24 hours, the highest UV Index reading in St. John the Baptist Parish, LA is expected to be 7.9 in Laplace between 1:00 PM - 2:00 PM CDT today.

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Current UV Index in Cities in St. John the Baptist Parish, LA

• Edgard - 7.1
• Garyville - 7.1
• Laplace - 7.1
• Pleasure Bend - 7.1
• Reserve - 7.1
• Wallace - 7.1