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

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Watertown SD

7 Day Forecast

For More Weather Information:

Aberdeen, SD Local Forecast Office

Overnight

Scattered Thunderstorms Chance for Measurable Precipitation 30%

Scattered
Thunderstorms

Low: 66 °F

Saturday

Heavy Rain Chance for Measurable Precipitation 80%

Heavy
Rain

High: 78 °F

Saturday
Night

Thunderstorms Chance for Measurable Precipitation 80%

Thunderstorms

Low: 63 °F

Sunday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 76 °F

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 54 °F

Monday

Mostly Sunny

Mostly
Sunny

High: 72 °F

Monday
Night

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

Low: 55 °F

Tuesday

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

High: 69 °F

Tuesday
Night

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

Low: 54 °F

Detailed Forecast

  • Overnight Scattered showers and thunderstorms, mainly after 4am. Cloudy, with a low around 66. East northeast wind around 8 mph. Chance of precipitation is 30%.
  • Saturday Showers and thunderstorms. Some of the storms could produce heavy rainfall. High near 78. Breezy, with an east wind 10 to 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
  • Saturday Night Showers and thunderstorms, mainly before 1am. Low around 63. Southeast wind 7 to 16 mph becoming south southwest after midnight. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
  • Sunday A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76. Southwest wind 6 to 10 mph. Chance of precipitation is 20%.
  • Sunday Night Partly cloudy, with a low around 54. West wind 7 to 11 mph.
  • Monday Mostly sunny, with a high near 72.
  • Monday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
  • Tuesday A chance of showers and thunderstorms. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.
  • Tuesday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.
  • Wednesday A slight chance of showers and thunderstorms. Partly sunny, with a high near 70. Chance of precipitation is 20%.
  • Wednesday Night Partly cloudy, with a low around 52.
  • Thursday Sunny, with a high near 75.
  • Thursday Night Mostly clear, with a low around 56.
  • Friday Sunny, with a high near 77.