Windy and Turning Colder

The old closed low has shifted off to the east, and is no longer the dominant feature affecting Stateline weather.  The jet stream is now diving into the Midwest from central Canada.  The pattern shift will  push a cold front across north central Illinois during the mid day hours.  An intensifying surface low over Lake Superior will cause a tight pressure gradient across the Stateline by mid afternoon.  So, a Wind Advisory has been issued for the area as of 2 pm this afternoon, and it will be in effect until 5 am on Friday morning for the Greater Rockford area, and the surrounding counties. Winds will switch from southwesterly to northwesterly, and increase to 20 to 30 mph with gusts to 45 mph this afternoon, and perhaps as high as 50 mph in the Freeport area.  Also, there will be some showers associated with the frontal passage.  The temperature will reach the upper 60's today before falling back as cooler air moves in this afternoon.  Windy conditions will prevail until the Canadian high pressure gets closer  Friday evening when the wind is expected to die down to 10 to 15 mph on Friday night.  If the wind diminishes to near calm... with clear skies, and temperatures in the middle 30's,  there could be some frost.  If the wind is able to maintain itself above 10 mph,  no frost is likely to form.  With the Canadian high pressure overhead it will be a sunny cool day on Saturday with a high only in the upper 50's.  Saturday night will be another chilly night with lows in the middle to upper 30's.  A warming trend will start on Sunday with temperatures lifting into the middle 60's under sunny skies.  A extended period of delightful fall weather will continue through the middle of next week with more sunshine, and very comfortable temperatures in the low to middle 70's.   Low temps at night will be in the 50's.