The Metropolitan Mosquito Control District (MMCD) tells us we have "two or three weeks maybe, before people will start seeing mosquitos in earnest. People don't really have to worry about it until mid-to-late May, when we'll start seeing the kind of numbers that get our attention."
Thanks to winter sticking around longer than normal this year we may actually see a larger than normal population. Mosquitoes breed over bodies of water and the larvae forms under the ice. With snow and ice on Minnesota waters well past spring this year, we may end up seeing larger mosquitoes as mosquitoes tend to take its time developing.