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Erwin, SD 7-Day Night Weather Forecast
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Erwin, SD Weather Forecast
Erwin, SD Weather Forecast Date: 219 PM CDT Thu Sep 10 2026
The area/counties/county of: Kingsbury, including the cities of: De Smet, Arlington, and Lake Preston.or toggle through each period.
Tonight... Mostly clear. Warmer with lows in the mid 60s. South winds 15 to 20 mph with gusts up to 30 mph.
Friday... Mostly sunny and windy. Highs in the upper 80s. South winds 20 to 30 mph with gusts up to 40 mph.
Friday Night... Mostly clear. Cooler with lows in the mid 50s. West winds 15 to 20 mph with gusts up to 35 mph, becoming north 10 to 15 mph with gusts up to 25 mph after midnight.
Saturday... Mostly sunny. Not as warm with highs in the lower 70s. North winds 10 to 15 mph.
Saturday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows around 50. Northeast winds 5 to 10 mph.
Sunday... Mostly cloudy with a chance of showers and thunderstorms in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 50%.
Sunday Night... Mostly cloudy. Showers likely with a chance of thunderstorms after midnight. Breezy with lows in the lower 50s. Chance of rain 60%.
Monday... Mostly cloudy with a chance of showers in the morning, then partly sunny in the afternoon. Breezy with highs in the lower 70s. Chance of rain 50%.
Monday Night... Partly cloudy. Lows in the upper 40s.
Tuesday... Mostly sunny. Highs in the mid 60s.
Tuesday Night... Partly cloudy. Lows in the upper 40s.
Wednesday... Mostly cloudy in the morning, then becoming mostly sunny. Highs in the mid 60s.
Wednesday Night... Mostly cloudy. Lows around 50.
POP = Probability of Precipitation
Erwin Radar Loop
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