Spring officially begins Thursday, but winter chills still hang on

Temperatures for the end of the week will rise into the 40's Thursday and possibly 50's on Friday, but crash as we head into the weekend.
 
Low pressure will track out of the Northern Plains Thursday night pulling a warm front through by Friday morning allowing temperatures to warm into Friday afternoon.  By Friday night, a cold front will pass with high pressure moving in Saturday.  Temperatures Saturday will be in the upper 30's, but then tumble into the low 30's Sunday as strong high pressure builds across the middle of the country.  To put this into perspective, average highs should be close to 50 degrees.  Unfortunately, this cooler weather pattern will remain into the first of next week and could possibly take us through the remainder of March.