Illinois Road Conditions Latest Closings & Delays Current Conditions: Decatur, IL, USA 57 °F Clear Wind:S @ 14 mphHumidity:62 %Precipitation:0.0 inPressure:30 Summary High Low Wind Precipitation Sun Overcast High:58 °F Low:33 °F Wind:S @ 15 mph Precipitation:0.0 in Mon Overcast High:53 °F Low:38 °F Wind:NW @ 17 mph Precipitation:0.0 in Tue Partly Cloudy High:42 °F Low:27 °F Wind:WSW @ 6 mph Precipitation:0.0 in Wed Overcast High:39 °F Low:33 °F Wind:SSW @ 7 mph Precipitation:0.0 in Thu Sunny High:38 °F Low:29 °F Wind:NNW @ 13 mph Precipitation:0.0 in Fri Sunny High:36 °F Low:24 °F Wind:NW @ 11 mph Precipitation:0.0 in Sat Light snow High:37 °F Low:26 °F Wind:SSE @ 9 mph Precipitation:0.0 in Click buttons below for more Severe Weather updates. Current Watches & Warnings News Channel 20 Storm Team Forecast Xfinity Status (Outage) Center Ameren Outage Map Severe Weather Preparedness News Channel 20 Interactive Radar Winter Weather Preparedness Sign Up for Severe Weather Text Alerts