Light showers ahead of a cold front will slowly move across Louisiana today and Mississippi tonight. Rainfall amounts will generally be less than a quarter of an inch despite the high areal coverage. Limited instability will keep thunderstorms well offshore for the most part. In terms of temperatures, today will likely be the warmest day of the 7-day forecast period with highs just under normal for this time of the year.
High temperatures today will range from the mid 50s to lower 60s over the northern half of the forecast area, to the mid and upper 60s over the southern half of the area. It will be a little warmer on Friday with highs primarily in the upper 50s to mid 60s over most of the interior (especially northwest), but in the upper 60s and lower 70s southeast and coastal counties. Lows tonight will be mainly in the upper 40s to mid 50s inland and upper 50s to lower 60s closer to and along the coast.
A rather dry and cool pattern is expected in the longer range portion of the forecast period as dry. Light showers aren’t very likely, but if they do develop, they will generally be along the southeastern Louisiana coast. Monday night lows will likely settle into the mid 30s, possibly getting down to the lower 30s at a few interior locations by Tuesday morning. Otherwise, slightly below normal temperatures are expected to persist for the most part.