It's not spring, but finally the temperature in Milwaukee might remind you of the long-lost season. Milwaukee's official temperature reached 42 degrees Saturday afternoon, according to the National Weather Service. That's the first time the temperature has crossed the 40-degree mark in more than a month, WTMJ-TV (Channel 4) meteorologist Michael Fish said. The last time it was that warm was when the temperature reached 43 degrees on a rainy Jan.