| NWS Forecast for: Plymouth County Issued by: National Weather Service Sioux Falls, SD Last Update: 624 PM CDT Mon Jun 29 2026 | |
Tonight: Partly cloudy this evening, then becoming mostly cloudy. A chance of thunderstorms. A chance of showers this evening, then showers after midnight. Breezy with lows in the lower 70s. South winds 20 to 25 mph with gusts up to 35 mph, becoming southwest 5 to 10 mph after midnight. Chance of rain near 100 percent. Heat index values up to 106 early this evening. Tuesday: Sunny. A slight chance of showers and thunderstorms in the morning. Humid with highs in the lower 90s. Southwest winds around 5 mph. Chance of rain 20 percent. Tuesday Night: Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly cloudy with showers likely with a chance of thunderstorms after midnight. Humid with lows in the lower 70s. South winds 5 to 10 mph. Chance of rain 70 percent. Wednesday: Mostly sunny. A chance of showers and thunderstorms in the morning. Humid with highs in the lower 90s. South winds 15 to 20 mph. Chance of rain 50 percent. Wednesday Night: Mostly clear in the evening, then becoming partly cloudy. A chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. Humid with lows in the lower 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph, becoming south around 5 mph after midnight. Chance of rain 40 percent. Thursday: Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent. Thursday Night: Becoming partly cloudy after midnight. A chance of thunderstorms. Showers likely, mainly in the evening. Lows around 70. Chance of rain 70 percent. Friday: Sunny. Highs in the lower 90s. Heat index values up to 100 in the afternoon. Friday Night: Mostly clear in the evening, then becoming partly cloudy. A chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 40 percent. Heat index values up to 100 early in the evening. Independence Day: Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent. Heat index values in the upper 90s in the afternoon. Saturday Night: Becoming mostly cloudy after midnight. A chance of thunderstorms. Showers likely, mainly in the evening. Lows in the upper 60s. Chance of rain 70 percent. Heat index values in the upper 90s early in the evening. Sunday: Mostly sunny. Highs in the mid 80s. Sunday Night: Mostly clear. Lows in the lower 60s. Monday: Mostly sunny. Highs in the upper 80s. | |
| Zone Forecast: Plymouth County | |
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