SIOUX FALLS SiouxFallsWeather.com

Thursday, June 18, 2026

Zone Forecast Product

.REST OF TONIGHT...Partly cloudy. Lows in the lower 50s. Northwest winds 5 to 10 mph. .THURSDAY...Mostly sunny. Highs in the mid 70s. Northwest winds 10 to 15 mph with gusts up to 25 mph. .THURSDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. Northwest winds 10 to 15 mph, becoming east around 5 mph after midnight. .JUNETEENTH...Partly sunny. Highs around 80. South winds 10 to 15 mph, becoming west 15 to 20 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 50s. Northwest winds 15 to 20 mph, becoming northeast around 5 mph after midnight. .SATURDAY...Sunny in the morning, then partly sunny with a chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 30 percent. .SATURDAY NIGHT...Cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the upper 50s. Chance of rain 70 percent. .SUNDAY...Mostly cloudy in the morning, then becoming partly sunny. A 50 percent chance of showers. Highs in the lower 70s. .SUNDAY NIGHT...Mostly cloudy. Lows in the lower 50s. .MONDAY...Partly sunny. Highs in the mid 70s. .MONDAY NIGHT...Partly cloudy. Lows in the mid 50s. .TUESDAY...Partly sunny with a chance of showers. Highs in the upper 70s. Chance of rain 40 percent. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 50s. .WEDNESDAY...Mostly sunny. Highs around 80. -- This email has been checked for viruses by AVG antivirus software. www.avg.com