Storms, Heavy Rain, and Another Cooldown for Southwest Louisiana

Southwest Louisiana is entering a busy stretch of weather, with rounds of showers and thunderstorms this weekend followed by a noticeable drop in temperatures early next week.

Showers and thunderstorms are expected in Southwest Louisiana late Saturday evening through overnight and into Sunday morning. Forecast rainfall totals are generally between one-half inch and around 1 inch. Isolated higher totals near 2 inches remain possible, which could lead to minor low-lying ponding or brief street flooding in poor drainage areas.

There is also a marginal risk of severe weather from Saturday afternoon through early Sunday for Southeast Texas and the western portions of Louisiana. A “marginal risk” is the lowest level on the severe weather risk scale, meaning a few strong to severe storms are possible but widespread severe weather is not expected. Strong wind gusts, frequent lightning, and brief heavy downpours will be the primary concerns.

Another round of wet weather is already in the forecast for Monday and Tuesday, with the potential for additional rain again late in the week.

Weekend Outlook: Storms Give Way to Heavier Rain

On Saturday, high temperatures are expected to reach about 75 degrees Fahrenheit across Southeast Texas, central Louisiana, and Southwest Louisiana, including areas such as Lake Charles and the rest of Calcasieu Parish. Scattered showers and thunderstorms will develop through the day and into the evening.

The most active weather period arrives Sunday and Monday:

• Sunday:
• High near 71 degrees.
• Showers and thunderstorms likely, with the heaviest rain and storms expected during this period.
• Storms may produce brief heavy rain, especially in areas that experience repeated rounds of showers.
• Monday:
• Forecast to be the wettest day, with up to an 80 percent chance of rain.
• High temperature around 66 degrees.
• Persistent rain and embedded thunderstorms will keep conditions damp and cool.

Rainfall totals from this multi-day event are expected to stay mostly in the moderate range — around 0.5 to 1 inch for many locations — but isolated areas could see near 2 inches, especially if heavier storms train over the same spots.

Early Week: Turning Colder After the Rain

A noticeable change arrives as the rain gradually clears out and colder air moves into the region.

• Monday Night:
  Temperatures begin to fall more sharply behind the system responsible for the rain.
• Tuesday:
• Skies start to clear, leading to improved visibility and drier conditions.
• High temperature around 60 degrees, noticeably cooler than the weekend.
• Tuesday Night:
  This is expected to be the coldest night of the period, with low temperatures potentially dropping near the freezing mark in some locations. Forecast lows range from about 32 to 42 degrees Fahrenheit, depending on exact location and local conditions.

Residents across Calcasieu Parish and neighboring areas should be prepared for a chill by Tuesday night, especially those sensitive to colder temperatures or with outdoor plants and pets.

• Wednesday:
• Mostly sunny and dry.
• High around 63 degrees.
• A calmer, cooler pattern sets in after several days of storms and steady rain.

Looking Ahead: More Rain Possible Later in the Week

In addition to the current weekend system and the Monday–Tuesday rain, forecasters are watching the potential for another round of wet weather later in the week. Details on timing and intensity are still developing, but the general pattern points toward an active stretch rather than a long dry spell.

For now, residents in Lake Charles, Sulphur, Vinton, Westlake, Iowa, Moss Bluff, Carlyss, Gillis, Hayes, Prien, Starks, and the broader Calcasieu Parish area should expect:

• Periods of showers and thunderstorms through Sunday and Monday.
• The possibility of isolated heavier rainfall totals near 2 inches.
• A marginal risk of severe storms Saturday afternoon through early Sunday in western Louisiana and Southeast Texas.
• A shift to colder, drier weather by Tuesday and Wednesday, with near-freezing lows possible Tuesday night.

Staying informed through local forecasts, weather apps, or broadcasts will help residents plan around the changing conditions, from wet roads and reduced visibility this weekend to chilly mornings early next week.