Here is your Champaign-Urbana Forecast from Chambana Weather Meteorologist Andrew Pritchard... For today, partly cloudy with a high of 80 degrees. Southwest wind 5 to 15 mph... Tonight, partly cloudy with a chance of a thunderstorm and a low of 55 degrees. Southwest wind 5 to 15 mph... Tomorrow, mostly sunny with a slight chance of a shower late in t…