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

Bighorn Mountains West

Zone Forecast

  • Rest Of Today Mostly cloudy. Scattered rain showers and isolated thunderstorms. Some thunderstorms may produce gusty winds and small hail late in the afternoon. Highs 49 to 57. West winds around 15 mph late in the afternoon. Chance of precipitation 40 percent.
  • Tonight Windy...cloudy. Numerous snow showers and slight chance of thunderstorms in the evening. Scattered rain showers through the night. Scattered snow showers after midnight. Snow accumulation up to 2 inches. Lows 34 to 42. West winds 15 to 20 mph increasing to northwest 25 to 30 mph with gusts to around 45 mph after midnight. Chance of precipitation 60 percent.
  • Sunday Windy. Mostly cloudy. Scattered rain showers and snow showers in the morning...then scattered rain showers in the afternoon. Highs 47 to 57. Northwest winds 25 to 30 mph with gusts to around 45 mph decreasing to 15 to 20 mph in the afternoon. Chance of precipitation 40 percent.
  • Sunday Night Partly cloudy. Lows 32 to 42. West winds around 15 mph.
  • Monday Not as cool. Partly cloudy with isolated rain showers in the morning...then mostly cloudy with scattered rain showers and isolated thunderstorms in the afternoon. Highs 54 to 64. South winds around 15 mph in the afternoon. Chance of precipitation 30 percent.
  • Monday Night Breezy. Mostly cloudy. Scattered rain showers and slight chance of thunderstorms in the evening...then scattered rain showers and snow showers after midnight. Lows 36 to 46. Chance of precipitation 50 percent.
  • Tuesday Mostly cloudy. Chance of rain showers and snow showers in the morning...then chance of thunderstorms and snow showers likely in the afternoon. Highs 49 to 59. Chance of precipitation 60 percent.
  • Tuesday Night Mostly cloudy with chance of thunderstorms in the evening...then partly cloudy with slight chance of rain showers after midnight. Lows 38 to 48. Chance of precipitation 40 percent.
  • Wednesday Warmer. Mostly sunny. Highs 58 to 68.
  • Wednesday Night Mostly clear. Lows 42 to 52.
  • Thursday Warmer. Mostly sunny. Highs 65 to 75.
  • Thursday Night Mostly clear. Lows 44 to 54.
  • Friday Mostly sunny in the morning then becoming partly cloudy. Highs 66 to 76.