This weekend continues to be a very pleasant one, but that is all about to change at the beginning of the work week as the models continue to trend towards a cooler week ahead. A cold front will barrel though the state Monday morning, and with this front, light precipitation could be possible. To the south precip will fall as rain but to the north, precip could fall as light snow. There will be no snow accumulations as there is very little moisture with this front.
A strong Canadian high pressure will move into the upper Midwest behind the cold front and this is when the very cold air will move into the area. This is when temperatures will fall to the lowest point we have have seen this fall. Lows will range from the single digits across the northwest part of the state to the lower 20s across far southeast Iowa. Tuesday will be mostly sunny, however, highs will not make it out of the 20s across the north, to the lower 30s to the south. Wednesday will not bring any relief as highs will still be below average for this time of year. Average high for this time of year is 50 so we will be far below average for the start of the week.
Late in the week, another upper level trough will deepen across the Midwest bringing more chances for precipitation for the end of the extended forecast. It looks like this precipitation chance will be all rain, however, there are too many variables that could change between now and then, so for now we will not get into specifics. Get out and enjoy the rest of the weekend before mother nature reminds us that winter is right around the corner.