SIOUX FALLS SiouxFallsWeather.com

Wednesday, August 12, 2026

Zone Forecast Product

.TODAY...Partly sunny. Patchy smoke this afternoon. Highs in the mid 80s. East winds 5 to 10 mph. .TONIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Patchy smoke. Humid with lows in the mid 60s. East winds 5 to 10 mph. Chance of rain 50 percent. .THURSDAY...Cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly sunny in the afternoon. Humid with highs in the upper 70s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 30 percent. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A 20 percent chance of showers. Humid with lows in the lower 60s. East winds 10 to 15 mph. .FRIDAY...Cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Humid with highs in the mid 70s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 60s. Chance of rain 50 percent. .SATURDAY...Cloudy with a chance of showers and thunderstorms. Highs in the upper 70s. Chance of rain 50 percent. .SATURDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening. Lows in the upper 50s. Chance of rain 50 percent. .SUNDAY...Mostly cloudy in the morning, then becoming mostly sunny. Highs in the mid 70s. .SUNDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s. .MONDAY...Partly sunny. Highs in the mid 70s. .MONDAY NIGHT...Partly cloudy with a chance of showers. Lows in the upper 50s. Chance of rain 40 percent. .TUESDAY...Mostly cloudy in the morning, then becoming partly sunny. Highs in the upper 70s.