National Weather Service United States Department of Commerce

Heavy rain possible for the northern Rockies & Plains; severe storms for the Northern Plains

An unseasonably strong storm system in the northwest U.S. will bring showers and thunderstorms, with locally heavy rainfall, to the northern Rockies and northern Plains. Isolated flash floods will be possible in these areas. Some storms could become severe in parts of the Dakotas into Minnesota, with large hail and damaging winds. In addition, temperatures will be 10 to 20 degrees below average.
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Current Conditions

Jefferson County

Zone Forecast

  • This Evening Mostly cloudy in the afternoon then becoming partly cloudy. Scattered showers and thunderstorms. Some thunderstorms may produce heavy rainfall. West winds around 5 mph shifting to the northwest early in the evening. Chance of precipitation 50 percent.
  • Tonight Partly cloudy. Scattered showers and thunderstorms... Then slight chance of showers and thunderstorms after midnight. Some thunderstorms may produce heavy rainfall. Lows in the lower 70s. Northeast winds up to 5 mph. Chance of precipitation 40 percent.
  • Sunday Partly cloudy with a 40 percent chance of showers and thunderstorms. Highs in the upper 80s. East winds up to 5 mph.
  • Sunday Night Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the lower 70s. East winds up to 5 mph.
  • Monday Partly cloudy with a 30 percent chance of showers and thunderstorms. Highs in the upper 80s. Southeast winds up to 10 mph.
  • Monday Night Partly cloudy. Lows in the lower 70s. Southeast winds up to 5 mph.
  • Tuesday Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs in the upper 80s.
  • Tuesday Night Partly cloudy. Lows in the lower 70s.
  • Wednesday And Wednesday Night Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs around 90. Lows in the lower 70s.
  • Thursday Partly cloudy with a 30 percent chance of showers and thunderstorms. Highs in the upper 80s.
  • Thursday Night Partly cloudy. Lows in the upper 60s.
  • Friday Partly cloudy with a 30 percent chance of showers and thunderstorms. Highs in the upper 80s.
  • Friday Night Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the mid 60s.
  • Saturday Partly cloudy with a 30 percent chance of showers and thunderstorms. Highs in the mid 80s.