Hi I am planning to go to Beijing in March 28 to April 8 will it be the warmer weather thank you

It will be the beginning of spring at that time. The average temperature is probably 8~15C during that period. It is cool in the day and a bit cold in the night. If you travel there, you still need to wear warm clothes like sweater and coat. Also guard yourselves against sandstorms with outdoors wind gear.