UNDATED (WSAU-Wheeler News) - Wisconsin had its hottest day of the summer yesterday, as a week-long heat wave began in earnest.
The heat index reached 104 at the state headquarters of the National Weather Service in Sullivan. In Grant County, the temperature-and-humidity index was 103 just northeast of Dubuque Iowa – and 102 near Boscobel.
Wausau's high temperature was 88. The city still has not hit 90-degrees this summer. Wisconsin Rapids hit 90. Stevens Point's high was 85. Marshfield was 86.
The heat index was in the 90’s in most other parts of the state.
Heavy rains fell in parts of southern Wisconsin but did nothing to cool things down. Downtown Oconomowoc recorded 4.2-inches of rain in almost two-and-a-half hours late yesterday afternoon. Many roads were closed due to standing water, mostly in construction zones.
It was still 78-degrees at 3am Tuesday in Madison and La Crosse. A dry day is expected, with highs in the low-90’s projected for most parts of the state. A major cool-down is not expected until Friday or Saturday.