The National Weather Service has issued a Frost Advisory for the entire state for tomorrow morning. Lows will drop into the lower and middle 30s across the state. This may lead to some patchy frost in some areas. Be sure to cover your outdoor plants before you go to bed or, if you can, bring them inside. Some of the cooler locations may get down into the upper 20s for a brief time which may lead to a freeze in some areas. Sioux City this morning dropped to 28° and we may see that again in other places. This is likely to be the last frost and possible freeze until the Fall as warmer weather looks to be in store through the weekend into next week with seasonal readings returning at that time.