National Weather Service
Live Weather Camera in Madison, WI. Dense fog advisory
Dense Fog Advisory issued July 27 at 5:09AM CDT until July 27 at 8:00AM CDT by NWS Milwaukee/Sullivan WI
Moderate
Expected
1 cameras
Active Until
Jul 27, 2026 13:00 UTC
Issued By
NWS Milwaukee/Sullivan WI
Area
Iowa; Dane; Jefferson; Lafayette; Green; Rock; Walworth
Alert Details
* 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.
Recommended Action
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.