Wisconsin Weather Alert: Dense Fog Slows I-90 Drivers, Weekend Heat Builds Into Friday
LA CROSSE, WISCONSIN – Commuters across western Wisconsin faced hazardous driving conditions Thursday morning as dense fog dropped visibility on Interstate 90 and surrounding highways to a quarter mile or less.
Dense Fog Advisory in Effect
The National Weather Service in La Crosse issued a Dense Fog Advisory covering portions of southeast Minnesota, northeast Iowa, and central to southwest Wisconsin. Cities including Black River Falls, Sparta, and Viroqua woke to near-zero visibility.
Motorists were urged to slow down, use headlights, and leave extra space on the roads. Conditions were expected to improve by 9 a.m., when the fog lifts and skies turn sunnier.
Heat Builds Into the Weekend
After the fog cleared, Thursday afternoon temperatures rose into the upper 70s under mostly sunny skies. The warm-up continues into Friday with highs near 82 degrees.
The weekend forecast calls for highs in the mid-80s across the La Crosse region, bringing summerlike warmth back to western Wisconsin. Sunshine will dominate, though a mix of clouds is expected at times.
Showers Return Next Week
While the weekend looks dry and warm, a shift in the weather pattern is expected early next week. Scattered showers and thunderstorms could develop Monday and Tuesday, with highs remaining in the low to mid-80s.
Five-Day Forecast for La Crosse
- Friday: Mostly sunny, high near 82; light southeast wind
- Saturday: Partly sunny, high near 85; light south wind
- Sunday: Mostly sunny, high near 86; light south wind
- Monday: 20% chance of showers and storms, high near 81
- Tuesday: 20% chance of storms, high near 83
As fog gives way to rising temperatures, Wisconsin drivers and residents should prepare for shifting weather conditions—from low-visibility mornings to hot afternoons—before storms return next week. Stay updated with ChicagoMusicGuide.com for the latest regional weather alerts.