Here is your Champaign-Urbana Forecast from Chambana Weather Meteorologist Andrew Pritchard... For today, mostly sunny with a high of 90 degrees. Southwest wind 5 to 10 mph... Tonight, partly cloudy with a chance of showers and thunderstorms and a low of 70 degrees. South wind 5 to 10 mph... Tomorrow, a chance of a shower or thunderstorm in the morn…