SIOUX FALLS SiouxFallsWeather.com

Sunday, August 9, 2026

Zone Forecast Product

.OVERNIGHT...Mostly cloudy. A chance of sprinkles late this evening. Lows in the mid 60s. Northeast winds 5 to 10 mph. .MONDAY...Partly sunny. A slight chance of showers and thunderstorms in the morning. Humid with highs in the mid 80s. East winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent. .MONDAY NIGHT...Patchy smoke in the evening. Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Humid with lows in the mid 60s. East winds 5 to 10 mph. Chance of rain 40 percent. .TUESDAY...Partly sunny. Humid with highs in the mid 80s. East winds 5 to 10 mph. .TUESDAY NIGHT...Partly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Humid with lows in the mid 60s. East winds 5 to 10 mph. Chance of rain 30 percent. .WEDNESDAY...Partly sunny. Highs in the lower 80s. .WEDNESDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms after midnight. Lows in the lower 60s. Chance of rain 50 percent. .THURSDAY...Cloudy. Highs in the mid 70s. .THURSDAY NIGHT...Mostly cloudy. Lows in the upper 50s. .FRIDAY...Cloudy with a chance of showers in the morning, then partly sunny in the afternoon. Highs in the lower 70s. Chance of rain 30 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of showers. Lows in the upper 50s. Chance of rain 40 percent. .SATURDAY...Mostly cloudy. Highs in the mid 70s. .SATURDAY NIGHT...Mostly cloudy. Lows in the upper 50s. .SUNDAY...Mostly cloudy in the morning, then becoming partly sunny. Highs in the mid 70s.