La Crosse, WI – A quick-moving weather system is expected to bring a narrow band of accumulating snow to parts of western and central Wisconsin tonight, with 1 to 3 inches possible along the I-90 corridor, according to the National Weather Service (NWS) in La Crosse. The rain-to-snow transition is expected after midnight, setting up potential travel impacts for early Tuesday commuters.
According to the NWS, most of the accumulation will occur on cold, grassy surfaces, ridgelines, and elevated roadways such as bridges and overpasses. While pavement temperatures are marginal, forecasters warn that any heavier bursts of snow could briefly reduce visibility and allow slush or light snow to form on untreated surfaces. The exact placement of the heaviest snow band could still shift as the system develops.
The highest-impact window is expected between 3 a.m. and 9 a.m. Tuesday, aligning with the morning commute. Residents in La Crosse, Onalaska, Holmen, Sparta, Tomah, Black River Falls, and communities along I-90 should plan for slower travel, especially on elevated roadways where temperatures will be coldest.
Forecasters recommend monitoring updated advisories overnight, as small changes in track could alter where the 1–3 inch zone sets up. Even light amounts of early-season snow can create slippery travel conditions, particularly in rural areas and ridge-top communities.
Drivers are encouraged to allow extra time Tuesday morning, use caution on bridges and overpasses, and stay aware of rapidly changing conditions.
