Tens of millions of Americans awoke in temperatures that felt more like winter than spring on April 7, with forecasters predicting another overnight freeze. Freeze warnings have been extended across several states, including Illinois, Indiana, Ohio, West Virginia, Virginia, Maryland, Pennsylvania, Delaware and New Jersey. Temperatures are expected to drop as low as the 20s, with daytime highs expected to remain in the 40s in major Northeast cities until later in the week. Unsettled weather is also threatening Florida and Hawaii, with a potential "kona storm" that could bring heavy rain and flood risks.