The National Weather Service has issued a freeze warning for south central and southeastern Wisconsin.
The weather service said Monday this will be the first widespread hard freeze in southern Wisconsin with temperatures in most areas expected to dip into the 20s. Communities along Lake Michigan may be slightly warmer.
The weather service says the freeze will likely end the growing season for the region's farmers and gardeners.
The freeze warning is in effect from 1 a.m. to 8 a.m. Tuesday.