Mad will be happy to know that Winter has finally arrived in south Georgia. The low tonight is 18 degrees. That's RAW 18 degrees without wind chill calculated in. Now for those of you not familiar with what 18 degrees does to the southern states, by comparison it would be like -20F to Wisconsin. In other words it might as well be zero degrees on the Kelvin scale because all activity as we know it here in the south will cease. All we need now is snow! Boy that would really liven things up around here! Overnight: Clear, with a low around 18. North northwest wind around 5 mph. Thursday: Sunny, with a high near 46. Wind chill values as low as 13 early. North northwest wind between 5 and 10 mph.