Despite the brutally hot weather in L.A. over the weekend, Lohan, 24, arrived in a flannel shirt and long boots that covered up her alcohol-monitoring anklet. She spent the afternoon doing charity work at the center, and was joined by her mother Dina, sister Ali, manager Lou Taylor and friend Eilat Anschel.
Lohan later Tweeted: "What a great place The Dream Center is here in L.A. ... had a nice time there today, it's so important to give back. I feel blessed."
The actress was released just before midnight from a Lynwood, Calif., jail after spending less than 14 hours behind bars and posting $300,000 bail. She is accused of violating probation in a DUI case by failing a mandatory drug test.
She is also expected to return to rehab in the coming days. Her next court date is Oct. 22.
Reporting by PERNILLA CEDENHEIM