National Weather Service United States Department of Commerce

Developing storm will spread rain across eastern U.S.; thunderstorms in the Southeast

A storm system developing in the South will move up the Mississippi River Valley on Sunday bringing rainfall to much of the eastern U.S., along with thunderstorms in the southeastern states. Some of the thunderstorms in the Southeast could produce large hail, damaging wind and heavy rain.
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Hazardous Weather Conditions

Current Conditions

Grand Valley

Zone Forecast

  • Rest Of Tonight Rain likely late in the evening...then snow... Possibly mixed with rain after midnight. No new snow accumulation. Lows in the 20s. West winds 10 to 15 mph after midnight. Chance of precipitation 60 percent.
  • Sunday Mostly cloudy with a chance of snow in the morning... Then partly sunny with slight chance of rain and snow in the afternoon. Highs in the 30s. Northwest winds 10 to 15 mph with gusts to around 25 mph in the afternoon. Chance of precipitation 40 percent.
  • Sunday Night Mostly cloudy. A 20 percent chance of snow after midnight. Lows 10 to 20. Northwest winds 10 to 15 mph shifting to the southwest after midnight. Gusts up to 25 mph.
  • Monday Mostly cloudy in the morning then becoming partly sunny. A 20 percent chance of snow. Highs in the 30s. Northwest winds 10 to 15 mph in the afternoon.
  • Monday Night Mostly cloudy in the evening then clearing. Lows 5 to 15.
  • Tuesday And Tuesday Night Partly cloudy. Highs in the 30s. Lows 15 to 25.
  • Wednesday Through Thanksgiving Day Mostly clear. Highs in the 40s. Lows 15 to 25.
  • Thursday Night Through Saturday Partly cloudy. Lows in the 20s. Highs in the 40s.