Brutally cold Siberian air filters into northern Illinois next week

If you though last week and this week were cold, just wait till early next week. 

A powerhouse of a cold front will pass through the western Great lakes Friday into Saturday, plummeting temperatures across much of the lower 48. But where is this air coming from? 

Well, a product provided by NOAA called the hysplit model uses model data to track the path of certain airmasses. Next week's blast of extremely cold air has origins from the heart of Siberia. BRRRR!

Temperatures Saturday will top out in the low 20s, but that will be early in the day. Overnight lows will drop into single digits Sunday morning as the core of this Arctic blast begins to settles in. 

This will leave highs between Sunday and Tuesday in the single digits, with overnight lows landing below both Sunday night and Monday night. Factor in an organized wind, and it’s likely the Stateline will see wind chills as low as -20° to -30°.