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Despite experiencing the same cold front, locations across southeast Louisiana can see noticeably different overnight temperatures. Sunday morning lows are forecast near 45°F in Covington and 54°F in New Orleans. Differences in proximity to water, urban development, and land cover can all contribute to these local temperature variations.
Image Description
NWS New Orleans/Baton Rouge graphic titled "Same Cold Front. Different Mornings." Forecast morning lows for Sunday, November 8, show Covington at 45°F and New Orleans at 54°F, a 9-degree difference. Three explanations are highlighted: Nearby Water – large bodies of water, including Lake Pontchartrain, release stored heat overnight and moderate temperatures; Urban Heat Retention – pavement, buildings, and other developed surfaces absorb heat during the day and release it at night; and More Efficient Cooling – areas farther from water with less development can cool more quickly overnight. The graphic features a sunset waterfront cityscape background with blue and orange temperature panels. Issued November 7, 2026, at 6:30 AM.
