National Weather Service United States Department of Commerce

The National Weather Service in Milwaukee is now producing an experimental inland lakes wave height forecast, in addition to wave forecasts on Lake Michigan.  The inland lakes forecast is available in graphical and text format, and is a 72 hour forecast of wind speed, direction and estimated wave height on the larger inland lakes of south central and southeast Wisconsin.  This forecast would be very useful to boaters and fisherman on the inland lakes of southern Wisconsin.

 Inland lakes that are forecast include:

  • Lake Winnebago (south) - Fond du Lac County
  • Beaver Dam Lake - Dodge County
  • Green Lake - Green Lake County
  • Lake Wisconsin - Columbia County
  • Cedar Lake - Washington County
  • Lake Mendota - Dane County
  • Lake Monona - Dane County
  • Lake Koshkonong - Jefferson County
  • Pewaukee Lake - Waukesha County
  • Muskego Lake - Waukesha County
  • Whitewater Lake - Walworth County
  • Lake Geneva - Walworth County and more

‚ÄčThe below is an example of the 72 hour inland lake forecast in looping graphical format for northern portions of the area:

inland lakes wave height forecast

and here is an example of the inland lakes forecast for the southern part of the area:

inland lakes - south

The forecast is also available in text format:

inland lakes text forecast

The current Inland Lakes forecast is available at the following website:

We would like your feedback on how useful you find this product.  Please send us an email at 


Thank you