Clouds have been socked in today as advertised as temperatures are struggling along and north of Interstate 20 to make it to 60 degrees. Locations south of Interstate 20, and south of a stalled frontal boundary, are already into the 60s with 70s as you approach Hattiesburg. This front will be the catalyst tonight for showers to develop as a cold front and area of low pressure aloft pass over the region. Rain won't be heavy, but it will persist through the night and into our Wednesday morning. Rain should come to an end by noon, especially north of Interstate 20, although a few locations south of Interstate 20 could see some lingering showers into the mid afternoon hours.
Once the rain exits, clouds will be slow to depart, but you will really notice the cold air that will be in place throughout the day on Wednesday. A strong arctic high pressure currently in Saskatchewan will slide southward through the day and keep highs from making it out of the mid 40s. Lows Thursday and Friday morning will be back down below freezing with us bottoming out in the mid 20s each day.
The arctic high will slide to our east starting Friday which will shift our winds from the south and start our warm up. Friday highs will stop shy of 60 for most of us with all of us making a run to 70 for Saturday and breaking into the 70s for Sunday.
Late Sunday into Monday is when our next cold front will arrive, and this one bears watching. At this point (6 days out), timing is an issue, but with as warm as we are going to be into the start of next week, we do run the risk of seeing some strong to severe storms. It is too early at this point to say if we will see anything severe, but we will be watching closely through the rest of this week and into the weekend.