Look for a high of 74 today with cloudy skies. More rain is on the way tomorrow. Tonight, the Rent Guidelines Board holds a preliminary vote on proposed rent increases in the city’s regulated apartments. Also, the LES Business Improvement District briefs Community Board 3 on its expansion plans. And this evening, the fascinating LES Heritage Film Series returns to the Seward Park Library. Tonight’s film deals with the Jewish-immigrant experience in the New York City and includes images and interviews from as far back as 1900. Check out our Calendar for more details.