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Island Lake, SD 7-Day Night Weather Forecast
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Island Lake, SD Weather Forecast
Island Lake, SD Weather Forecast Date: 819 AM CDT Sat Aug 22 2026
The area/counties/county of: Minnehaha, including the city of Sioux Falls.or toggle through each period.
Rest of Today... Sunny. Highs in the lower 80s. North winds 5 to 10 mph.
Tonight... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph, becoming east after midnight.
Sunday... Mostly sunny. Highs in the lower 80s. Southeast winds 5 to 10 mph.
Sunday Night... Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 60s. Southeast winds around 10 mph with gusts up to 20 mph. Chance of rain 70%.
Monday... Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then partly sunny in the afternoon. Highs in the upper 70s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20%.
Monday Night... Mostly cloudy. Lows in the lower 60s.
Tuesday... Mostly sunny. Highs in the mid 80s.
Tuesday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s.
Wednesday... Sunny. Highs in the lower 80s.
Wednesday Night... Mostly clear. Lows in the upper 50s.
Thursday... Mostly sunny. Highs in the lower 80s.
Thursday Night... Partly cloudy. A chance of showers after midnight. Lows in the lower 60s. Chance of rain 40%.
POP = Probability of Precipitation
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