| NWS Forecast for: Plymouth County Issued by: National Weather Service Sioux Falls, SD Last Update: 523 PM CDT Fri May 15 2026 | |
Tonight: Partly cloudy with a slight chance of showers and thunderstorms this evening, then mostly clear after midnight. Some thunderstorms may be severe. Lows in the mid 50s. Northwest winds 5 to 10 mph with gusts up to 20 mph, becoming northeast after midnight. Chance of rain 20 percent. Saturday: Mostly sunny. Highs in the mid 80s. Northeast winds 5 to 10 mph, becoming east 10 to 15 mph with gusts up to 25 mph in the afternoon. Saturday Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. Lows in the mid 50s. East winds 15 to 20 mph. Chance of rain 70 percent. Sunday: Mostly cloudy with a chance of showers and thunderstorms in the morning, then mostly sunny with showers and thunderstorms in the afternoon. Breezy and more humid with highs in the upper 80s. Southeast winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 80 percent. Sunday Night: Showers and thunderstorms, mainly in the evening. Some thunderstorms may be severe in the evening. Lows in the mid 50s. South winds 15 to 20 mph with gusts up to 30 mph, becoming southwest around 10 mph after midnight. Chance of rain 90 percent. Monday: Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly sunny with showers with a chance of thunderstorms in the afternoon. Not as warm with highs in the upper 70s. Chance of rain 90 percent. Monday Night: Showers likely, mainly in the evening. Breezy, cooler with lows in the mid 40s. Chance of rain 60 percent. Tuesday: Mostly cloudy in the morning, then becoming partly sunny. Breezy and much cooler with highs around 60. Tuesday Night: Partly cloudy in the evening, then clearing. Lows in the upper 30s. Wednesday: Mostly sunny. Highs in the mid 60s. Wednesday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 40s. Thursday: Partly sunny. Highs in the lower 70s. Thursday Night: Partly cloudy. Lows in the upper 40s. Friday: Mostly sunny. Highs in the upper 70s. | |
| Zone Forecast: Plymouth County | |
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