The National Weather Service has issued a Frost Advisory for the Sioux Falls area for Friday Morning. Parts of South Dakota to the west of the city can expect a freeze.

...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM CDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 3 AM TO 9 AM CDT FRIDAY.

* WEATHER CONDITIONS...TEMPERATURES WILL FALL TO THE 32 TO 35
  DEGREE RANGE LATE TONIGHT AND EARLY FRIDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT WIDESPREAD FROST IS EXPECTED.
SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED.