The last time any significant measurable rain fell in Rockford was back on July 18th when 1.66 inches came down. Since then, the rain has been few and far between for much of northern Illinois and southern Wisconsin. That will change early Monday morning as a cold front begins to move closer to the Stateline.
Skies will remain partly to mostly cloudy through much of Sunday evening as thunderstorms move across Minnesota and northwest Wisconsin and rain showers move through Iowa. Much of the forcing in the atmosphere will be centered over the Upper Midwest through Monday morning, giving a better chance for thunderstorms north of the Stateline.
The rain falling over Iowa Sunday evening will hold together long enough and is expected to move into the Stateline after 2am/3am Monday morning. It likely won’t be much, between 0.20 and 0.40 inches, but definitely needed as the ground and fields have become dry. In fact, parts of northwest and west-central Illinois have been placed under ‘abnormally dry’ conditions from the National Drought Mitigation Center. It seems like just a few months ago we couldn’t turn the rainfall faucet off.
Following Monday’s rain chance skies will turn dry once again as high pressure anchors itself over much of the Great Lakes and Midwest. Minimal chances for rain are expected this week with high temperatures in the low to mid 80s and overnight lows dipping into the 50s.