7-Day Zone Forecast for Plymouth County (Text-Only)
NWS Forecast for: Plymouth County
Issued by: National Weather Service Sioux Falls, SD
Last Update: 958 AM CDT Sun Sep 27 2026
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Rest Of Today: Mostly cloudy. Patchy very light drizzle late this morning. Patchy fog late this morning. Highs in the lower 70s. East winds around 5 mph.

Tonight: Mostly cloudy. A slight chance of showers in the evening. Lows in the upper 50s. East winds around 5 mph. Chance of rain 20 percent.

Monday: Mostly cloudy. Highs around 70. Southeast winds 5 to 10 mph.

Monday Night: Mostly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Lows around 60. Southeast winds 10 to 15 mph. Chance of rain 40 percent.

Tuesday: A slight chance of thunderstorms in the morning. Showers. Highs in the upper 60s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain near 100 percent.

Tuesday Night: Cloudy with a 50 percent chance of showers. Lows in the upper 50s.

Wednesday: Mostly cloudy with a 50 percent chance of showers. Highs around 70.

Wednesday Night: Mostly cloudy with a 50 percent chance of showers. Lows in the upper 50s.

Thursday: Mostly cloudy in the morning, then becoming partly sunny. Highs in the mid 60s.

Thursday Night: Partly cloudy. Lows in the lower 50s.

Friday: Mostly sunny. Highs in the lower 60s.

Friday Night: Partly cloudy. Lows in the lower 50s.

Saturday: Partly sunny. Highs in the lower 60s.







Zone Forecast: Plymouth County

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