Expires:201305182100;;331207 FPUS53 KFSD 181355 ZFPFSD ZONE FORECAST FOR SE SOUTH DAKOTA/NW IOWA/SW MINNESOTA NATIONAL WEATHER SERVICE SIOUX FALLS SD 855 AM CDT SAT MAY 18 2013 MNZ072-182100- LYON- INCLUDING THE CITIES OF...MARSHALL 855 AM CDT SAT MAY 18 2013 .REST OF TODAY...MOSTLY CLOUDY IN THE MORNING...THEN BECOMING PARTLY CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN THE MORNING. HIGHS AROUND 86. SOUTH WINDS 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH. .TONIGHT...MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING...THEN OCCASIONAL THUNDERSTORMS AFTER MIDNIGHT. LOWS AROUND 66. SOUTHEAST WINDS 15 TO 20 MPH DECREASING TO 10 TO 15 MPH AFTER MIDNIGHT. CHANCE OF RAIN 80 PERCENT. .SUNDAY...OCCASIONAL THUNDERSTORMS. HIGHS AROUND 78. SOUTHEAST WINDS 10 TO 15 MPH. CHANCE OF RAIN 80 PERCENT. .SUNDAY NIGHT...OCCASIONAL THUNDERSTORMS. LOWS AROUND 60. SOUTHEAST WINDS 5 TO 10 MPH. CHANCE OF RAIN 80 PERCENT. .MONDAY...SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS. HIGHS AROUND 71. SOUTH WINDS 5 TO 10 MPH. CHANCE OF RAIN 70 PERCENT. .MONDAY NIGHT...MOSTLY CLOUDY. SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE EVENING...THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LOWS AROUND 52. CHANCE OF RAIN 60 PERCENT. .TUESDAY...SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS. HIGHS AROUND 61. CHANCE OF RAIN 60 PERCENT. .TUESDAY NIGHT AND WEDNESDAY...CLOUDY WITH SCATTERED LIGHT SHOWERS. LOWS AROUND 48. HIGHS AROUND 59. CHANCE OF RAIN 50 PERCENT. .WEDNESDAY NIGHT...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF LIGHT SHOWERS. LOWS AROUND 47. .THURSDAY...PARTLY SUNNY. HIGHS AROUND 66. .THURSDAY NIGHT AND FRIDAY...PARTLY CLOUDY. LOWS AROUND 48. HIGHS AROUND 70. $$