La Crosse Wisconsin Fall Weather: Thunderstorm Threat Early Thursday Could Slow Morning Commute on I-90

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La Crosse, Wis. – Early Thursday could bring delays across western Wisconsin as thunderstorms and patchy fog settle in before sunrise. Morning drivers on I-90 should expect reduced visibility and slick roads through 7 a.m., prompting safety concerns for commuters.

According to the National Weather Service in La Crosse, scattered storms are likely before dawn Thursday, followed by gradually clearing skies by mid-morning. Fog may linger through early hours, particularly in river valleys and along rural routes. Drivers should slow down, allow extra space, and keep headlights on to reduce risk in low-visibility conditions.

By late Thursday morning, sunshine will return with a high near 78 degrees, offering clear skies for Patriot Day events across the city. Local organizers are urging attendees to allow additional travel time if morning ceremonies coincide with fog. Thursday night will remain partly cloudy with temperatures near 57 degrees, providing comfortable conditions for evening observances.

Looking ahead, Friday brings mostly sunny skies and highs near 83, a welcome warm-up for outdoor activities. The weekend continues the dry stretch, with highs climbing to the upper 80s by Saturday. Another slight chance for showers returns late Sunday night into Monday, but overall, La Crosse remains mostly quiet heading into next week.

Residents should prepare for early-morning disruptions Thursday, then expect calmer, sunnier conditions for the remainder of the weekend. More advisories could be issued if storm development intensifies overnight.

Five Day Forecast for La Crosse, Wisconsin

  • Thursday: Chance of morning storms, patchy fog early, then sunny. High 78, low 57.
  • Friday: Mostly sunny. High 83, low 65.
  • Saturday: Partly sunny and warm. High 87, low 64.
  • Sunday: Slight storm chance late. High 86, low 63.
  • Monday: Spotty showers possible. High 83, low 62.