Expires:202607261100;;612394 FPUS53 KFSD 260330 ZFPFSD Zone Forecasts for SE South Dakota/NW Iowa/SW Minnesota National Weather Service Sioux Falls SD 1029 PM CDT Sat Jul 25 2026 SDZ067-261100- Lincoln- Including the cities of Canton, Lennox, Tea, and Harrisburg 1029 PM CDT Sat Jul 25 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM CDT SUNDAY... .OVERNIGHT...Showers with a chance of thunderstorms late this evening, then a chance of showers and thunderstorms. Some thunderstorms may be severe late this evening. Near steady temperature in the mid 70s. North winds 15 to 20 mph, becoming southeast 10 to 15 mph. Chance of rain near 100 percent. .SUNDAY...Mostly cloudy in the morning, then becoming mostly sunny. Hot with highs in the upper 90s. South winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 111 in the afternoon. .SUNDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Humid with lows in the mid 70s. South winds 10 to 15 mph. Chance of rain 20 percent. Heat index values up to 109 early in the evening. .MONDAY...Sunny, hot with highs in the mid 90s. North winds 5 to 10 mph with gusts up to 20 mph. .MONDAY NIGHT...Mostly clear in the evening, then becoming mostly cloudy. Lows in the lower 70s. Northeast winds 5 to 10 mph. .TUESDAY...Partly sunny in the morning, then clearing. Highs in the lower 90s. .TUESDAY NIGHT...Mostly clear. Lows in the upper 60s. .WEDNESDAY...Mostly sunny. Highs in the lower 90s. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s. .THURSDAY...A chance of thunderstorms in the morning. Partly sunny with a chance of showers. Highs in the upper 80s. Chance of rain 40 percent. .THURSDAY NIGHT...Showers likely, mainly in the evening. Lows in the upper 60s. Chance of rain 60 percent. .FRIDAY...Partly sunny in the morning, then clearing. Highs in the upper 80s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 60s. .SATURDAY...Sunny. Highs in the upper 80s. $$