SIOUX FALLS SiouxFallsWeather.com

Sunday, September 27, 2026

Zone Forecast Product

.TODAY...Mostly cloudy. Areas of fog this morning. A slight chance of showers this afternoon. Highs in the lower 70s. East winds 5 to 10 mph. Chance of rain 20 percent. .TONIGHT...Mostly cloudy. A slight chance of showers in the evening, then a slight chance of sprinkles after midnight. Patchy fog after midnight. Lows in the upper 50s. East winds around 5 mph. Chance of rain 20 percent. .MONDAY...Patchy fog in the morning. Cloudy. Highs around 70. Southeast winds 10 to 15 mph with gusts up to 25 mph. .MONDAY NIGHT...Cloudy. Showers likely with a slight chance of thunderstorms after midnight. Lows in the upper 50s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 60 percent. .TUESDAY...A slight chance of thunderstorms. Showers. Highs in the upper 60s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 90 percent. .TUESDAY NIGHT...Mostly cloudy with a 50 percent chance of showers. Lows in the mid 50s. .WEDNESDAY...Mostly cloudy in the morning, then becoming partly sunny. A 40 percent chance of showers. Highs around 70. .WEDNESDAY NIGHT...Mostly cloudy. Lows in the mid 50s. .THURSDAY...Partly sunny in the morning, then clearing. Highs in the mid 60s. .THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s. .FRIDAY...Mostly sunny. Highs in the lower 60s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 50s. .SATURDAY...Partly sunny. Highs in the lower 60s.