SIOUX FALLS SiouxFallsWeather.com

Sunday, July 26, 2026

Zone Forecast Product

.OVERNIGHT...Partly cloudy late this evening, then clearing. A slight chance of showers and thunderstorms. Lows in the mid 70s. Southeast winds 5 to 10 mph, becoming southwest. Chance of rain 20 percent. Heat index values in the upper 90s early. .MONDAY...Mostly sunny. Patchy smoke. Humid with highs in the lower 90s. North winds 10 to 15 mph with gusts up to 25 mph. .MONDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows around 70. Northeast winds 5 to 10 mph. .TUESDAY...Mostly sunny. Humid with highs in the upper 80s. Southeast winds 5 to 10 mph. .TUESDAY NIGHT...Mostly clear. Humid with lows in the upper 60s. South winds around 5 mph. .WEDNESDAY...Sunny. Highs around 90. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 70. .THURSDAY...Mostly cloudy with a chance of showers in the morning, then partly sunny with showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 60 percent. .THURSDAY NIGHT...A chance of thunderstorms. Showers likely, mainly in the evening. Lows in the mid 60s. Chance of rain 60 percent. .FRIDAY...Partly sunny in the morning, then clearing. Highs in the lower 80s. .FRIDAY NIGHT...Mostly clear. Lows in the lower 60s. .SATURDAY...Mostly sunny. Highs in the lower 80s. .SATURDAY NIGHT...Mostly clear. Lows in the mid 60s. .SUNDAY...Sunny. Highs in the mid 80s.