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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Hazardous Weather Conditions

Current Conditions

Lamar County

Zone Forecast

  • Tonight Mostly clear. Patchy fog late. Lows in the lower 70s. Light and variable winds.
  • Saturday Mostly sunny with a 20 percent chance of showers and thunderstorms. Highs in the upper 90s. Heat index readings 101 to 105. Northwest winds 5 to 15 mph.
  • Saturday Night Partly cloudy with a 20 percent chance of showers and thunderstorms. Patchy fog after midnight. Lows in the lower 70s. Light and variable winds.
  • Sunday Chance of showers and thunderstorms in the morning... Then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 90s. Northeast winds 5 to 15 mph. Chance of rain 60 percent.
  • Sunday Night Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the lower 70s. East winds 5 to 10 mph. Chance of rain 40 percent.
  • Monday Partly sunny with a 20 percent chance of showers. Highs in the upper 80s.
  • Monday Night Partly cloudy. Lows in the mid 60s.
  • Tuesday Mostly sunny. Highs in the upper 80s.
  • Tuesday Night Mostly clear. Lows in the mid 60s.
  • Wednesday Mostly sunny. Highs around 90.
  • Wednesday Night Partly cloudy. Lows in the upper 60s.
  • Thursday Mostly sunny with a 20 percent chance of showers and thunderstorms. Highs in the lower 90s.
  • Thursday Night Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the upper 60s.
  • Friday Mostly sunny with a 40 percent chance of showers and thunderstorms. Highs in the lower 90s.