National Weather Service United States Department of Commerce

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

The following tables show the climate information for Rapid City, Gillette, Lead, Winner, Lemmon, Sundance, Spearfish, Newcastle, Hot Springs, and Custer on Leap Day, as well as the weather in Rapid City and Gillette for the past 10 Leap Days.