Expires:202607200900;;263132 FPUS53 KFSD 200200 ZFPFSD Zone Forecasts for SE South Dakota/NW Iowa/SW Minnesota National Weather Service Sioux Falls SD 859 PM CDT Sun Jul 19 2026 SDZ063-200900- Charles Mix- Including the cities of Wagner, Platte, Lake Andes, and Marty 859 PM CDT Sun Jul 19 2026 ...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT MONDAY... .TONIGHT...Partly cloudy. Showers and thunderstorms likely this evening. Lows in the upper 70s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent. Heat index values up to 103 early this evening. .MONDAY...Sunny, hot with highs around 102. Southwest winds 10 to 15 mph, becoming northwest in the afternoon. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 70. North winds 10 to 15 mph. Heat index values up to 101 early in the evening. .TUESDAY...Sunny. Not as warm with highs in the upper 80s. North winds 15 to 20 mph. .TUESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s. Northeast winds 10 to 15 mph with gusts up to 25 mph, becoming east 5 to 10 mph after midnight. .WEDNESDAY...Partly sunny in the morning, then becoming mostly cloudy. A slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 20 percent. .WEDNESDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms after midnight. Lows in the lower 60s. Chance of rain 50 percent. .THURSDAY...Cloudy with a chance of showers in the morning, then partly sunny in the afternoon. Highs in the lower 80s. Chance of rain 50 percent. .THURSDAY NIGHT...Mostly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 50 percent. .FRIDAY...Mostly cloudy in the morning, then becoming mostly sunny. Highs in the mid 80s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 60s. .SATURDAY...Sunny. Highs in the lower 90s. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 70. .SUNDAY...Mostly sunny. Hot with highs in the upper 90s. $$