Current upper air analysis shows a trough of low-pressure over the east and west coasts of the US with high-pressure over the rest of the country. Along the gulf coast, that will allow for temperatures to moderate into the low to mid 70s this afternoon. In fact, a location or 2 may even touch 80 early this afternoon. A surface ridge situated east of the region will promote increasing moisture as onshore flow develops. Friday should be similar to today with slight warmer temperatures.
The next appreciable chance of rain will begin Saturday afternoon. A cold front will be moving into northwest Louisiana around sunset Saturday. Showers and isolated thunderstorms will be possible across the area ahead of the approaching cold front. Through this period, most of the convection should be relatively light but with increasing coverage. Best rain chances should be in SW Mississippi. Moving into the overnight period and Sunday morning, the cold front should be moving through the forecast area. Showers and thunderstorms will accompany this boundary. Monday is a bit more of a question mark as an area of low-pressure will track from the SW to the NE across the Gulf of Mexico. This will bring showers to the area. The total amount of rainfall will depend on the exact track of the low-pressure.