PM Update: Higher rain chances Sunday afternoon and night. Slight shower/storm chance beforehand. The Washington PostDangerous Weather Threatens Memorial Day Weekend – Videos from The Weather Channel The Weather ChannelD.C.-area forecast: Summer-like warmth today. Strong storms possible on Memorial Day. The Washington PostSevere Thunderstorms and Heavy Rainfall Memorial Day WITNWarm start to holiday weekend, storms likely later on Sunday NBC4 WCMH-TV