Here is your Champaign-Urbana Forecast from Chambana Weather Meteorologist Andrew Pritchard... For today, mostly sunny, warm and humid with a high of 90 degrees. Southwest wind 5 to 10 mph... Tonight, clear skies with a low of 70 degrees. Calm winds... Tomorrow, mostly sunny with a high of 90 degrees. South wind 5 to 10 mph... Tomorrow night, partly…