Weather May 26, 2017 3:14 pm Full Circle Rainbow Over DC Kicks Off Memorial Day Weekend Chopper4 in Washington, D.C., captured footage of this circular rainbow over the city. US & World Videos 3:41 Cool air to linger over Boston into the weekend 3:17 Cooling back down, weekend turns wet in Boston 3:02 Dry and cooler in our region, with temps in the mid-50s 3:20 Weather forecast: Highs in the 50s 3:11 The weather's great, but the wheels come off the forecast by the weekend