...FREEZING TEMPERATURES TONIGHT OVER SOUTH TEXAS... .Freezing temperatures will develop once again overnight across South Texas. Temperatures will remain below freezing through the mid morning Thursday, before gradually warming throughout the day. ...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM CST THURSDAY... * TEMPERATURE...Falling into the lower 30s overnight, then gradually rising to above freezing by late morning. * IMPACTS...Temperatures at or below freezing can kill sensitive vegetation. Portable plants may need to be brought indoors to a warmer location, or consider covering sensitive vegetation as needed. Small animals should be adequately cared for, or brought indoors if needed.