Federated Learning (FL) is a popular approach for edge learning with distributed data while ensuring privacy.The traditional FL with deep neural networks trained via backpropagation is not suitable for low-latency learning in 6G mobile networks.To address this, Low-Latency Federated Learning (LoLaFL) via forward-only propagation is proposed.LoLaFL enables layer-wise transmissions and aggregation, significantly reducing latency with two nonlinear aggregation schemes.