weather forecast for the week downingtown
View 3 Hour Detailed Downingtown Weather Forecast for Today. Downingtown 4 â 7 Day Weather Forecast Summary: Light rain (total 6mm), mostly falling on Wed night. Warm (max 22Â°C on Tue afternoon, min 8Â°C on Mon night). Winds increasing (calm on Mon night, fresh winds from the S by Tue night).