So in general, regarding perishable foods like meat, most dairy, unshelled eggs and shell eggs (in the US) , cooked casseroles, and so on: if the food (or its perishable components) have been at room temperature for more than two hours, you should discard that food.
This directly effects how comfortable it will feel outside. Many times, relative humidity can be misleading. For example, a temperature of 30 and a dew point of 30 will give you a relative humidity of 100%, but a temperature of 80 and a dew point of 60 produces a relative humidity of 50%.
How to Test Humidity in a Home. Window condensation on the inside is a sign of too much humidity. A measurement for humidity provides information about the amount of moisture or water vapor in your home. Too much or too little humidity can create a variety of problems for your family and home. Family members, pets and even the plants in your home add moisture or water vapor to the home's environment. Everyday activities such as bathing, laundry, cooking and cleaning also contribute to your home's humidity.