Mardi Gras day forecast in New Orleans: Arctic blast expected to drop temperatures

Mardi Gras revelers in the St. Ann's parade make their way from the Bywater through the French Quarter on Mardi Gras Day, February 17, 2015. (Photo by Julia Kumari Drapkin, NOLA.com | The Times-Picayune)

Mardi Gras revelers in the St. Ann's parade make their way from the Bywater through the French Quarter on Mardi Gras Day, February 17, 2015. (Photo by Julia Kumari Drapkin, NOLA.com | The Times-Picayune)

An arctic cold front is expected to drop temperatures in New Orleans for Lundi Gras and Mardi Gras day, according to a forecast from the National Weather Service and our news partners at WVUE Fox 8.

While temperatures are expected climb into the 70s and maybe the 80s through the weekend, come Monday, a high of 49 is expected, according to Fox 8 chief meteorologist David Bernard. His current forecast also calls for a high of 49 on Mardi Gras day.

The National Weather Office in Slidell also said there’s a chance for cold rain Monday night and Tuesday morning. North of the metro area near the Louisiana/Mississippi line, there’s a very low chance of wintry precipitation, according to Galvin Phillips, a meteorologist with the National Weather Service.

Here’s more about the Mardi Gras forecast from the National Weather Service:

The cold front that moves through Sunday will have quite cold air with it. ... We should at least get about 6 to 10 hours of dry but cloudy weather Monday. ... Another jet streak will move through Monday evening bringing a cold rain back to the area for Monday night into Tuesday morning. It is this time frame that will need to be watched over the northern-most part of the area as moisture is brought back over a cold dry air mass.

There is a non-zero probability of some portion of the northern tier of counties observing some type of wintry precipitation late Monday night into early Tuesday before the moisture is forced back to the south as the jet pulse moves east by noon Tuesday.

Then finally, some dry days start Tuesday afternoon through Thursday morning of next week before moisture returns ahead of another cold front.

Here’s the forecast for New Orleans through Mardi Gras from the National Weather Service:

Wednesday (Nyx, Druids): Showers and thunderstorms likely before noon. Mostly cloudy, with a high near 71. Chance of precipitation is 60 percent. New rainfall amounts between a quarter and half of an inch possible. At night, a 50 percent chance of showers and thunderstorms. Patchy fog after 9 p.m. Otherwise, cloudy, with a low around 66. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday (Muses, Babylon, Chaos): Showers likely, with thunderstorms also possible after noon. Patchy fog before 9 a.m. Otherwise, cloudy, with a high near 74. Chance of precipitation is 60 percent. New rainfall amounts between a quarter and half of an inch possible. At night, a 30 percent chance of showers. Mostly cloudy, with a low around 63.

Friday (Hermes, d’Etat, Morpheus): A 40 percent chance of showers. Partly sunny, with a high near 75. At night, mostly cloudy, with a low around 64.

Saturday (Endymion, Iris, Tucks): A 50 percent chance of showers. Mostly cloudy, with a high near 76. At night, a 30 percent chance of showers. Mostly cloudy, with a low around 64.

Sunday (Bacchus, Thoth, Okeanos, Mid-City): Showers likely. Cloudy, with a high near 72. At night, showers likely. Mostly cloudy, with a low around 46.

Lundi Gras (Orpheus): A slight chance of showers. Mostly sunny, with a high near 56. Breezy. At night, a chance of rain. Mostly cloudy, with a low around 43.

Mardi Gras (Rex, Zulu): A slight chance of rain. Mostly sunny, with a high near 54. North wind around 15 mph.

See the full forecast from the National Weather Service.

Carlie Kollath Wells is a morning reporter at NOLA.com | The Times-Picayune. Have an early-bird tip? Send it to her: cwells@nola.com or Twitter @carlie_kollath.