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Island School, SD 7-Day Night Weather Forecast
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Island School, SD Weather Forecast
Island School, SD Weather Forecast Date: 644 AM CDT Mon Aug 17 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.
Today... Mostly sunny. A slight chance of showers this morning. Highs around 80. South winds 5 to 10 mph. Chance of rain 20%.
Tonight... Partly cloudy with a chance of showers and thunderstorms. Humid with lows in the lower 60s. South winds 5 to 10 mph. Chance of rain 50%.
Tuesday... Mostly cloudy in the morning, then becoming mostly sunny. A chance of showers and thunderstorms. Humid with highs in the upper 70s. South winds around 5 mph. Chance of rain 50%.
Tuesday Night... Mostly cloudy. Humid with lows in the upper 50s. Northeast winds around 5 mph.
Wednesday... Mostly cloudy in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 70s. East winds around 5 mph, becoming south around 5 mph in the afternoon. Chance of rain 20%.
Wednesday Night... Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 50s. Chance of rain 50%.
Thursday... Partly sunny in the morning, then clearing. Highs in the mid 70s.
Thursday Night... Mostly clear. Lows around 60.
Friday... Mostly sunny. Highs around 80.
Friday Night... Mostly clear. Lows in the upper 50s.
Saturday... Mostly sunny. Highs in the upper 70s.
Saturday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s.
POP = Probability of Precipitation
Island School Radar Loop
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