First Alert Forecast: Coldest Night of Season in Southwest Louisiana — Here’s What You Need to Know

LAKE CHARLES, La. (KPLC) – After enjoying mild weather in the 70s just yesterday, southwest Louisiana is bracing for the coldest night of the season so far, with temperatures expected to plunge well below freezing overnight and wind chills dipping into the teens.

What to Expect Tonight

Temperatures will vary depending on where you live in southwest Louisiana:

Inland areas north of I-10: Temperatures will drop below 32 degrees for 8 to 12 hours, with wind chills potentially reaching the upper teens.

Along I-10: Freezing conditions expected for 5 to 8 hours.

Coastal areas: Temperatures will dip below freezing for 1 to 2 hours, with the least severe impacts.

Monday morning will be brutally cold to start, but temperatures will gradually warm into the low 50s by afternoon as the sun rises.

Protect Your Pipes

The most immediate concern for homeowners is frozen water pipes. Here’s what you need to know:

If you’ve never had pipe problems before: You likely won’t experience issues tonight. Pipes typically only freeze when temperatures stay below 25 degrees for several hours.

If you’ve had problems in the past: Take precautions now. Cover exposed pipes or leave a faucet dripping slowly. Once temperatures rise above freezing, stop dripping the faucet to avoid wasting water.

Use common sense and assess your home’s vulnerable areas. Every situation is different.

Other Safety Reminders

• Outdoor pets: Bring them inside if possible, or ensure they have adequate shelter and unfrozen water.
• Check on neighbors and friends: Make sure elderly relatives and those living alone are staying warm and safe.
• Test your smoke detector: Cold weather increases the use of heating sources — make sure your smoke detector is working properly.
• Dress in layers: If you’ll be outside, bundle up. Wind chills will make it feel significantly colder than the actual temperature.

Looking Ahead

The good news? This cold snap won’t last long. Southerly winds should return as early as Tuesday afternoon, gradually warming temperatures back toward normal.

However, Monday night into Tuesday morning will bring widespread frost with calm winds and temperatures in the 30s.

Another cold front is expected to move through Wednesday night into Thursday, bringing scattered showers. This system won’t be as severe as today’s front, but temperatures will drop slightly by week’s end.

A third cold front may arrive Sunday with scattered showers and possibly a few thunderstorms, though impacts appear minimal.

By Thursday and Friday, temperatures will rebound into the 70s before cooling slightly over the weekend.

Copyright 2025 KPLC. All rights reserved.