SIOUX FALLS SiouxFallsWeather.com

Saturday, September 19, 2026

Zone Forecast Product

.REST OF TONIGHT...Cloudy. Patchy fog. Near steady temperature in the lower 60s. North winds 5 to 10 mph. .SATURDAY...Patchy fog in the morning. Mostly cloudy. Highs in the mid 60s. North winds 5 to 10 mph with gusts up to 20 mph. .SATURDAY NIGHT...Mostly cloudy. Lows in the mid 50s. Northeast winds 10 to 15 mph. .SUNDAY...Mostly cloudy. Highs in the mid 60s. Northeast winds 10 to 15 mph with gusts up to 25 mph. .SUNDAY NIGHT...Cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 50s. Northeast winds 10 to 15 mph. Chance of rain 50 percent. .MONDAY...Mostly cloudy. A chance of showers, mainly in the morning. Highs in the lower 60s. Chance of rain 50 percent. .MONDAY NIGHT...Mostly cloudy. Lows in the mid 40s. .TUESDAY...Partly sunny. Highs in the mid 60s. .TUESDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the mid 40s. .WEDNESDAY...Mostly sunny. Highs in the mid 60s. .WEDNESDAY NIGHT...Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows around 50. Chance of rain 40 percent. .THURSDAY...Mostly cloudy in the morning, then becoming partly sunny. Highs in the upper 60s. .THURSDAY NIGHT...Mostly cloudy. Lows in the lower 50s. .FRIDAY...Mostly cloudy in the morning, then becoming partly sunny. Highs in the lower 70s.