National Weather Service United States Department of Commerce

Heavy rain possible for parts of the northern Rockies & Plains; Severe storms for the Upper Midwest

An unseasonably strong storm system in the northwest U.S. will bring showers and thunderstorms, some heavy, to parts of the northern Rockies and northern Plains through Saturday. Isolated flash floods will be possible in these areas. Some of the storms could be severe in parts of the Dakotas into Minnesota, with large hail and damaging winds.
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Current Conditions

Rapid City

Zone Forecast

  • Rest Of Tonight Numerous showers and thunderstorms. Locally heavy rainfall possible. Lows in the lower 60s. Northwest winds up to 10 mph shifting to the northeast after midnight. Chance of precipitation 70 percent.
  • Saturday Numerous showers and thunderstorms. Locally heavy rainfall possible. Highs in the mid 70s. East winds 5 to 10 mph. Chance of precipitation 70 percent.
  • Saturday Night Mostly cloudy with showers and thunderstorms likely in the evening...then partly cloudy with chance of showers and slight chance of thunderstorms after midnight. Lows in the mid 50s. Northwest winds 5 to 10 mph. Chance of precipitation 60 percent.
  • Sunday Partly cloudy. Highs in the upper 60s. Northwest winds 10 to 15 mph.
  • Sunday Night Partly cloudy. Lows in the upper 40s. North winds 5 to 15 mph.
  • Monday Partly cloudy in the morning then becoming mostly cloudy. A 30 percent chance of showers and thunderstorms. Highs in the upper 60s.
  • Monday Night Mostly cloudy with a 50 percent chance of showers and thunderstorms. Lows in the mid 50s.
  • Tuesday Mostly cloudy with a 50 percent chance of showers and thunderstorms. Highs in the mid 60s.
  • Tuesday Night Partly cloudy with a 30 percent chance of showers and thunderstorms. Lows in the lower 50s.
  • Wednesday Partly cloudy in the morning then becoming mostly sunny. Highs in the lower 70s.
  • Wednesday Night Mostly clear. Lows in the mid 50s.
  • Thursday Mostly sunny. Highs around 80.
  • Thursday Night Mostly clear. Lows around 60.
  • Friday Mostly sunny. Highs in the lower 80s.