The southeast Wisconsin, Waukesha and Milwaukee forecast for the rest of your Friday has another round of plenty of sun with fairly nice temperatures. Highs will top out in the upper-40's, but if you live by Lake Michigan, it will probably cool down a little as the day wears on.
Tonight looks quiet with temperatures around average under mostly clear skies. Expect lows in the low-30's
Saturday starts out okay, but slowly goes downhill as the hours tick by. The western counties have the best chance of afternoon rain with highs in the lower-50's, though it may cool down a little right next to Lake Michigan at times.
The main batch of scattered showers will be moving through on Saturday night. These actually will be tapering off as the later night hours wear on. Overnight lows will be in the mid-30's and we'll keep all this as rain.
Opening Day looks to be colder and windy, but looks dry with highs in the mid- to upper-30's.