Seasonal Weather Forecast Weather Command forecasts summer 2020

by Steve Mirsky

Temperatures over the state of Illinois this summer are expected to average above normal (figure 1). Broken down for each month, June is forecast to average slightly above normal statewide, but the warmest temperatures are relative to normal is expected to be in the northeast corner of the state (figure 2). During July, readings are forecast to average near normal across the northern and west central portions, but slightly cooler than normal

GEFS Mean 2m Temperature Anomoly over the southern and east central sections (figure 3). Relative to normal, July looks to be the coolest month of the summer months. It appears it will heat up again in August with above normal temperatures across the entire state. Relative to normal, August is projected to be the hottest month for this summer. Generally, rainfall this summer is expected to be near/ above normal in the north and below normal in the south.

Steve Mirsky is a degreed meteorologist and has been with Weather Command since 1988. Although Steve is interested in almost every aspect of weather, his specialties include consulting for energy companies, winter storms, severe weather and long range forecasting.

Disclaimer: This forecast is subject to the inherent limitations of the science of meteorology. While every attempt was made to provide the most accurate forecast possible, it should not be construed as definitive fact. There is a margin of error in all weather forecasting that must be acknowledged and accounted for.

This forecast is that of the author and does not necessarily represent Murray and Trettel, Inc./Weather Command.

CFSv2. 2-meter Temperature Anomoly based on 1984-2009 climataology