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

Jefferson County

Zone Forecast

  • Overnight Mostly cloudy early in the morning then becoming partly cloudy. Scattered showers and thunderstorms. Near steady temperature in the mid 70s. Light winds. Chance of precipitation 50 percent.
  • Saturday Partly cloudy with scattered showers and thunderstorms. Highs in the upper 80s. Southwest winds up to 5 mph shifting to the northwest around 5 mph in the afternoon. Chance of precipitation 50 percent.
  • Saturday Night Partly cloudy. Chance of showers and thunderstorms...then slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Northeast winds up to 5 mph. Chance of precipitation 30 percent.
  • Sunday Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs in the upper 80s. Northeast winds up to 5 mph.
  • Sunday Night Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows around 70. East winds up to 5 mph.
  • Monday Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs in the upper 80s.
  • Monday Night Partly cloudy. Lows in the lower 70s.
  • Tuesday Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs around 90.
  • Tuesday Night Partly cloudy. Lows around 70.
  • Wednesday Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs in the upper 80s.
  • Wednesday Night And Thursday Partly cloudy with a 30 percent chance of showers and thunderstorms. Lows in the upper 60s. Highs in the mid 80s.
  • Thursday Night And Friday Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the lower 60s. Highs in the upper 70s.