From Meteorologist Yasser Kishk: High Memorial Day: 63 Wind: NE 5-10 mph
Scattered rain showers will develop this afternoon. Any outdoor plans for this afternoon will certainly require a backup plan to move indoors.
Low Tonight: 48 Wind: NNW 5-10 mph
Showers will finally come to an end tonight as the weather system responsible pulls away.
A Flood Watch is in effect until 6 p.m. Monday. Three Flood Warnings are in effect for Pennington and Custer Counties until 8:45 p.m., 10:30 p.m. and 11:45 p.m. Monday night. Rapid Creek running through Rapid City is included in the warning until 11:45 p.m.
Conditions will clear up heading into Tuesday, with an isolated thunderstorm possible. Afternoon thunderstorms possible mid-week with warmer air moving into the area.