So far August has been cooler than normal. And that is likely to continue for a while. Here are the temperature departures for August so far. The statewide average temperature for Illinois is running about 2 degrees below the 1981-2010 normal.
As a cold front swept through Illinois yesterday and today, it has brought cooler and less humid air behind it. And according to the National Weather Service, those cooler temperatures will be around awhile. Over the next 7 days, highs will range from the low 70s in northern Illinois to the mid to upper 70s in central Illinois and the upper 70s and low 80s in southern Illinois. That’s about 6 degrees below normal for this time of year.