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Alcester, SD 7-Day Night Weather Forecast
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Alcester, SD Weather Forecast
Alcester, SD Weather Forecast Date: 459 PM CDT Thu Sep 10 2026
The area/counties/county of: Union, including the cities of: North Sioux City, Beresford, Elk Point, Alcester, and Jefferson.or toggle through each period.
Tonight... Mostly clear. Not as cool with lows in the lower 60s. South winds 10 to 15 mph with gusts up to 25 mph.
Friday... Mostly sunny and breezy with highs in the upper 80s. South winds 15 to 25 mph with gusts up to 35 mph.
Friday Night... Partly cloudy in the evening, then becoming mostly clear. Lows around 60. South winds 15 to 20 mph with gusts up to 30 mph, becoming northwest 10 to 15 mph after midnight.
Saturday... Sunny. Not as warm. Less humid with highs in the mid 70s. North winds 5 to 10 mph with gusts up to 20 mph.
Saturday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.
Sunday... Showers likely with a slight chance of thunderstorms in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 60%.
Sunday Night... Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the upper 50s. Chance of rain 70%.
Monday... Showers likely with a chance of thunderstorms in the morning, then partly sunny with a chance of showers in the afternoon. Warmer with highs in the upper 70s. Chance of rain 70%.
Monday Night... Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the mid 50s. Chance of rain 40%.
Tuesday... Mostly cloudy in the morning, then becoming mostly sunny. Not as warm with highs in the upper 60s.
Tuesday Night... Partly cloudy. Lows in the lower 50s.
Wednesday... Mostly cloudy in the morning, then becoming partly sunny. Highs in the mid 60s.
Wednesday Night... Mostly cloudy. Lows in the lower 50s.
POP = Probability of Precipitation
Alcester Radar Loop
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