National Weather Service United States Department of Commerce

{June 29, 2026 4 PM} Excessive heat and high humidity will impact the region through Wednesday. High heat indices up to 107 degrees will create a high risk for heat-related illnesses for some locations. Drink plenty of water, wear lightweight clothing, and never leave kids or pets in vehicles.
{June 29, 2026 4 PM} Scattered thunderstorms are forecast for Tuesday afternoon and evening, with some of which may become severe. The primary hazards include damaging wind gusts, small hail, and localized heavy downpours. Confidence is medium across the north but low across central WI.
{June 29, 2026 4 PM} Tonight will remain very warm and humid with temperatures from 68 to 78 degrees and a chance of storms after midnight. Intense heat continues through Thursday, with storm chances peaking at 60-90% on Wednesday alongside highs stretching into the low to mid-90s.