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Review of August 18, 2026 line of severe thunderstorms

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Cool & Dry Weather to Start the Week

August 18 Damage Survey Results

Temperatures will remain slightly below seasonal norms early this week, with dry and quiet weather expected. Shower and storm chances return midweek.

Damage surveys from the August 18 severe thunderstorms found multiple areas of 70-80 MPH straight line wind damage from western Washington County southeast into Waukesha County and the city of Milwaukee. One brief tornado was confirmed near the villages of Colgate and Richfield in southern Washington County, and was rated EF0 with maximum wind speeds of 80 MPH.