Sweeney, SD 7-Day Night Weather Forecast
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Sweeney, SD Weather Forecast


Sweeney, SD Weather Forecast Date: 132 AM CDT Mon Aug 03 2026
The area/counties/county of: Lyman, including the city of Kennebec.or toggle through each period.
Rest of Tonight... Partly cloudy. Patchy smoke. Breezy with lows in the lower 70s. South winds 15 to 25 mph with gusts up to 40 mph.
Monday... Partly sunny. Patchy smoke in the afternoon. Breezy, hot with highs in the lower 90s. South winds 20 to 25 mph, becoming southwest 15 to 25 mph in the afternoon. Gusts up to 40 mph.
Monday Night... Mostly cloudy with a slight chance of thunderstorms in the evening, then partly cloudy with a slight chance of showers after midnight. Patchy smoke. Windy, cooler with lows in the upper 50s. Northwest winds 20 to 30 mph with gusts up to 45 mph, becoming north 15 to 20 mph with gusts up to 30 mph after midnight. Chance of rain 20%.
Tuesday... Partly sunny. A slight chance of showers in the morning. Not as warm with highs in the lower 70s. Northwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20%.
Tuesday Night... Partly cloudy. Lows in the mid 50s. West winds 5 to 10 mph, becoming south after midnight.
Wednesday... Partly cloudy. Highs around 80. Lows around 60.
Wednesday Night... Partly cloudy. Highs around 80. Lows around 60.
Thursday... Partly sunny. Highs in the mid 80s.
Thursday Night... Mostly clear. Hot. Lows in the mid 60s. Highs in the mid 90s.
Friday... Mostly clear. Hot. Lows in the mid 60s. Highs in the mid 90s.
Saturday... Mostly clear. Hot. Lows in the mid 60s. Highs in the mid 90s.
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