The NWS Climate Prediction Center released their latest outlook for August and beyond. In the figure below, the top row are the temperature and precipitation outlooks for August. The second row is for August – October. Click to enlarge.
For August, northern Illinois has an increased chance of below-average temperatures, along with Iowa, Wisconsin, Minnesota, and the Dakotas. Precipitation in August has equal chances (EC) of being above, below, or near-average.
For August-October, almost all of Illinois has an increased chance of below-average temperatures. Precipitation during this period has equal chances of being above, below, or near-average.
So far, July is shaping up to be both cooler and wetter than average. Through July 16, the statewide average temperature was 70.9 degrees, 5 degrees below average. Statewide precipitation was 2.9 inches, 54 percent above average.