New Orleans Weather In October 2025. The entire mardi gras season, or carnival, runs for several weeks before actual mardi gras day. Daily high temperatures decrease by 8°f, from 84°f to 76°f, rarely falling below 67°f or exceeding 90°f.

Weather.com brings you the most accurate monthly weather forecast for new orleans, la with average/record and high/low temperatures, precipitation and more. Typically warm and sunny during the day and breezy with a chill at.