Actually, its still only 24 hours, BUT daylight is at its maximum. Should actually be the end of the Summer Solstice movement of the earth, so that the exposure to the Sun is the greatest, and after 6 pm local time it will start the beginning of the shorter days. In Bloomington, Illinois the Sun will be out for 15 hours and 5 minutes. That is discounting the predawn light and the dusk after sunset before dark.
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Do a Google search of “Summer Solstice”, if interested in learning more.
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Forecast is rain in the area, so we may see none of it.