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

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As of 1:42 PM CST on December 9, 2025, all 6 cities in St. John the Baptist Parish, LA in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Laplace, LA with a reading of 3.2.

Over the next 24 hours, the highest UV Index reading in St. John the Baptist Parish, LA is expected to be 3.7 in Laplace between 12:00 PM - 1:00 PM CST tomorrow.

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

• Edgard - 3.2
• Garyville - 3.2
• Laplace - 3.2
• Pleasure Bend - 3.2
• Reserve - 3.2
• Wallace - 3.2