2024 Winter Forecast Midwest 2024. The astronomical start of winter begins with the winter solstice on saturday, december 21, 2024. The upper areas of the pnw, specifically central washington, southeast alaska and parts of montana through the midwest should expect cold temperatures.

So, what does this mean for milwaukee and the rest of wisconsin? Winter will be not so cold as usual and coldest in early november, early and late january, late february, and early march.