Heat Advisory issued July 27 at 5:09AM CDT until July 27 at 9:00PM CDT by NWS Milwaukee/Sullivan WI
Issue date: 2026-07-27T10:09+00:00
* WHAT...For the Dense Fog Advisory, visibility as low as 1/2 mile in dense fog. For the Heat Advisory, heat index values up to 101 expected. * WHERE...Dane, Green, Iowa, Lafayette, Rock, Jefferson, and Walworth Counties. * WHEN...For the Dense Fog Advisory, until 8 AM CDT this morning. For the Heat Advisory, from 10 AM this morning to 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Low visibility could make driving conditions hazardous.
Dense Fog Advisory issued July 27 at 5:09AM CDT until July 27 at 8:00AM CDT by NWS Milwaukee/Sullivan WI
Issue date: 2026-07-27T10:09+00:00
* WHAT...For the Dense Fog Advisory, visibility as low as 1/2 mile in dense fog. For the Heat Advisory, heat index values up to 101 expected. * WHERE...Dane, Green, Iowa, Lafayette, Rock, Jefferson, and Walworth Counties. * WHEN...For the Dense Fog Advisory, until 8 AM CDT this morning. For the Heat Advisory, from 10 AM this morning to 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Low visibility could make driving conditions hazardous.
Heat Advisory issued July 27 at 1:59AM CDT until July 27 at 9:00PM CDT by NWS Milwaukee/Sullivan WI
Issue date: 2026-07-27T06:59+00:00
* WHAT...Heat index values up to 102 expected. * WHERE...Portions of south central and southeast Wisconsin. * WHEN...From 10 AM this morning to 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Special Weather Statement issued July 27 at 1:25AM CDT by NWS Milwaukee/Sullivan WI
Issue date: 2026-07-27T06:25+00:00
Areas of fog will linger over parts of south-central and southwest Wisconsin through sunrise. While widespread dense fog is not expected at this time, visibilities could briefly drop to and below a half mile in spots. Slow down, use low beam headlights, and allow for extra following distance if encountering fog on the roads early this morning.
