Summertime and the forecasting is easy....

Above...left to right.....disturbances across the Atlantic.
Center...disturbance off African coast....right - disturbance south of Puerto Rico. All have to be watched. 

This disturbance in Gulf of Mexico must also be watched for tropical formation....although right now...indications are not strong.

This satellite shows moisture in center of the Nation...and that will work east to affect the eastern half of our Nation Sunday and Monday. Right now...summerlike temps and humidity seem likely much of next week.

Map above is for late Saturday.  Front in Great lakes to affect east Sunday/Monday....front in Plains..affecting Midwest Sunday..and then east next week.

Rainfall amounts expected Sunday. Moderate amounts New England...Ohio/Tenn Valleys.   Heavy to severe weather Minnesota to Missouri.  Have a nice, safe weekend...do not drink and drive....do not text and drive.