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.
Read More...

Hazardous Weather Conditions

Current Conditions

Yellowstone National Park

Zone Forecast

  • Tonight Isolated thunderstorms in the evening. Numerous rain showers through the night. Scattered snow showers and isolated thunderstorms after midnight. Some thunderstorms may produce gusty winds...small hail and heavy rainfall early in the evening. Some thunderstorms may produce heavy rainfall in the late evening and early morning. Little or no snow accumulation. Lows 37 to 43. Chance of precipitation 70 percent.
  • Saturday Mostly cloudy. Scattered snow showers early in the morning. Scattered rain showers through the day. Isolated thunderstorms in the afternoon. Some thunderstorms may produce gusty winds and small hail in the afternoon. Highs 48 to 54. West winds around 15 mph in the afternoon. Chance of precipitation 50 percent.
  • Saturday Night Cloudy with scattered rain showers and slight chance of thunderstorms. Patchy fog after midnight. Lows 32 to 38. Chance of precipitation 50 percent.
  • Sunday Mostly cloudy with scattered rain showers and slight chance of thunderstorms. Highs 49 to 55. Chance of precipitation 40 percent.
  • Sunday Night Mostly cloudy with a 20 percent chance of thunderstorms. Lows 33 to 39.
  • Monday Mostly cloudy. Slight chance of thunderstorms in the morning...then scattered rain showers and slight chance of thunderstorms in the afternoon. Highs 53 to 59. Chance of precipitation 40 percent.
  • Monday Night Mostly cloudy with scattered rain showers and slight chance of thunderstorms in the evening...then partly cloudy with slight chance of thunderstorms after midnight. Lows 33 to 39. Chance of precipitation 40 percent.
  • Tuesday Partly cloudy with a 20 percent chance of thunderstorms. Highs 57 to 63.
  • Tuesday Night Partly cloudy in the evening then clearing. Lows 34 to 40.
  • Wednesday Mostly sunny. Highs 62 to 68.
  • Wednesday Night Mostly clear. Lows 37 to 43.
  • Thursday Mostly sunny in the morning then becoming partly cloudy. Highs 63 to 69.
  • Thursday Night Partly cloudy in the evening then clearing. Lows 38 to 44.
  • Friday Partly cloudy. A 20 percent chance of thunderstorms in the afternoon. Highs 61 to 67.