New Orleans woke up to a classic late-spring combo on Tuesday morning, May 19, 2026: clear skies, sticky air, and that familiar wall of humidity. Temperatures sat around 77°F at the Lakefront airport with dew points in the low 70s, a setup that makes the morning feel more like midsummer. Afternoon heating is expected to push highs into the upper 80s, with a southeast breeze offering only limited relief for anyone headed outside.
Afternoon Thunder Chance
After about 1 p.m. CDT on Tuesday, May 19, 2026, showers and thunderstorms are expected to bubble up during the hottest part of the day. Highs should reach near 88°F before easing back into the mid 80s later in the afternoon. Storms will be scattered, so most neighborhoods will stay dry, but any spot that gets hit could see a brief heavy downpour and gusty winds. If you have outdoor plans, it is a good idea to keep one eye on the sky and another on a radar app.
Wetter Pattern Through Next Week
The daily storm threat does not back off after today. From Wednesday, May 20, 2026, through the weekend and into Memorial Day, Monday, May 25, 2026, showers and storms are expected to become more numerous. Locally heavy rainfall is on the table, with forecasters highlighting 7-day totals of 4 to 7 inches across parts of the northwest and much lighter amounts along the Mississippi coast. Some neighborhoods could see repeat storms and street flooding, according to the National Weather Service. Temperatures should stay near to a bit above normal, with daytime highs in the mid 80s and overnight lows in the mid 70s.
Marine, Coast And Commute Impacts
Persistent southerly winds will keep Lake Pontchartrain and nearby coastal waters choppy, and minor coastal flooding remains possible at the usual trouble spots around midday. The forecast discussion specifically notes the potential for tidal levels to peak near Waveland, Mississippi. Boaters should use extra caution, and drivers should be ready for ponding on low-lying streets after heavier downpours. If you have travel or outdoor events lined up later this week, an indoor backup plan and a little extra commute time for wet roads would not hurt.
The broader wet pattern did not come out of nowhere. We flagged this trend earlier in the month in our May 1 preview, which laid out the setup and early outlook. For real-time conditions, watches, and any flood advisories, keep up with updates from the National Weather Service and local authorities before heading out.
