(Gerald Martineau/The Washington Post)

Wednesday “feels every bit like summer” thanks to the humidity and heat, reports the Capital Weather Gang’s Dan Stillman. This heat could cause some delays for MARC and VRE riders during Wednesday’s afternoon and evening commute, as heat restrictions have been announced for both services.

Heat restrictions reduce the speeds at which trains can travel. For MARC riders on the Camden and Brunswick lines, there could be delays of between five and 15 minutes, according to the Maryland Transit Administration. VRE riders on the Fredericksburg Line will encounter heat restrictions between 1 and 7 p.m., and the VRE says those delays could be as little as two minutes and as long as 11 minutes.

Both transit agencies warn riders that the longer you are on a train, the more delays will accumulate. If you only travel one or two stops, you might not really notice the delays, while riders heading to the end of the line could experience longer waits. Keep that in mind when you head home.