A cold front will move through Saturday to bring some rain and cooler temperatures. Unfortunately, these cooler temperatures near average will not last long as highs will begin to inch closer to the 80s into next week.

Saturday

High pressure at the surface to the east will allow for surface winds to be southeasterly to southerly Friday night into Saturday morning. This brings a return of moisture from the Gulf of Mexico with dewpoints rising into the low 60s by Saturday morning.

Upper-level high pressure ridging over the Gulf will help Saturday morning lows moderate in the mid 60s. Rich moisture in the lower levels of the atmosphere will aid in the formation of patchy fog. Some fog could be dense in the morning with visibilities possibly falling to below 1/2 mile.

As the cold front approaches, there will be decent moisture for some rain showers. Precipitable water values range between 1″-1.5″. There does not appear to be an abundant amount of forcing for convection, so isolated to scattered showers are likely with a few thunderstorms possible (better probability to the northeast). The timing of rain will be from the morning to afternoon hours with maybe a shower or two lingering in the early evening. Rain will be rather scattered and not expected to produce any high rain totals.

Behind the front, northerly winds will take hold, but clouds are not quick to leave. A cloud deck will remain for the day into the night.

Temperatures will be rather warm during the day. Southerly flow will help afternoon highs warm to the mid-to-upper 70s, possibly reaching the low 80s in some places. The front will clear by the evening allowing for some weak cold air advection from the northerly winds. Overnight lows will drop into the upper 50s and low 60s more south.

Gameday Forecasts

Two big matchups for Southern and LSU are on tap for Saturday. If you are traveling for either big game, here is what you can expect for the weather.

Southern @ Jackson State: Jackson, MS
If you plan on tailgating, rain jackets and umbrellas look to be needed. Scattered showers will move through from the early to late morning ahead of a cold front. Clouds will gradually clear starting in the afternoon. Afternoon highs will be near 71°F and begin to fall behind the front.

LSU @ Georgia: Atlanta, GA
Scattered showers and maybe a few storms will move ahead of a cold front in the morning hours. A few showers may linger into kickoff time. The day will mostly be cloudy before gradual clearing into the evening. High temperatures will only get into the low 60s before falling once the front clears.

Sunday

Once the front clears Saturday, it will begin to stall over the Gulf. This will allow for clouds associated with it to return over the area. Overall moisture does not leave behind the front with dewpoints only dropping to the upper 50s and low 60s during the day. Winds will remain from the north, but clouds will filter in from the south.

Temperatures will be cooler into the 60s for most of the day with highs near 70°F. With those dewpoints close to the temperatures, there will still be decent moisture in the low-levels. A few isolated showers could pop up during the day, but nothing will be widespread. Overall, it will be a cloudy, but quiet end to the weekend.

Beyond

The upper-level high pressure ridge over the Southern Gulf will expand northward into next week. This will help temperatures increase to above average values in the upper 70s and low 80s. The Climate Prediction Center has Baton Rouge under a 70 to 80-percent probability for temperatures above normal between December 8-12. Average temperatures for this time of year are in the mid 60s. Record highs during this time are in the low-to-mid 80s.