Chilly and Dry

There is a log jam in the flow of weather systems.  An area of high pressure is blocking the movement of Hurricane Sandy off the mid Atlantic coast.  The jet stream is snaking around, and is expected to force Sandy to the north, then northwest, and finally to the west/northwest during the next 36 hours.  With Sandy backing into the Delaware Bay/southern New Jersey area, Canadian high pressure will remain off to the northwest of the Stateline feeding a chilly northerly breeze into the area for the next several days. High temperatures will be in the upper 40's to around 50 degrees Monday through Thursday, and low temperatures will be in the upper 20's to around 30 degrees for the same period.  There will be plenty of sunshine to, but you will be well aware of the chill in the air.  By Friday the remnants of Sandy will kick off to the northeast into southeastern Canada.  The Canadian high pressure ridge will move to the east, and a southerly flow will develop bringing seasonal temperatures in the middle 50's back to northern Illinois.  A new weather system moving eastward from the plains might even scatter some showers into the area by next Sunday.