Historical weather data, all-time temperature records, and monthly climate averages for Sheboygan, WI. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Sheboygan is a classic spring coin-flip — expect a high around 49° with a 41% chance of rain. The date's range tells the whole story: it's hit 76° as recently as 2021, but also bottomed out at 14° back in 2018.
Sheboygan plays for keeps on both ends of the thermometer. The all-time high of 102° in July 2012 and a bone-chilling -23° in January 2019 represent a 125-degree swing, and a single August day in 1998 dropped nearly 8 inches of rain on the city.
Summer is the clear sweet spot, with highs peaking around 81–82° in mid-July before cooling gradually through fall. Winters are genuinely cold — mid-January highs average just 25° — so plan accordingly if you're visiting between December and February. If you're dodging rain, avoid mid-June, which is the wettest stretch of the year.