Madison, Wisconsin – Arctic air is expected to remain firmly entrenched across southern Wisconsin from Jan. 24 through Jan. 30, bringing a prolonged stretch of below-normal temperatures and reinforcing deep winter conditions across the region.
According to the National Weather Service Climate Prediction Center, southern Wisconsin falls within a roughly 70 percent probability zone for below-normal temperatures during the Jan. 24–30 period. Confidence remains elevated that cold air will dominate with limited opportunities for meaningful moderation before the end of the month.
Across south-central Wisconsin, including Madison and the Interstate 90/94 corridor, daytime highs are expected to remain well below seasonal averages, with overnight lows frequently dropping into the teens and single digits. Persistent cold will allow snowpack and icy conditions to linger on roads, particularly during early morning and nighttime hours.
In southeastern Wisconsin, including Milwaukee, Kenosha, and Racine, temperatures are also expected to stay below normal throughout the Jan. 24–30 window. Near Lake Michigan, colder air moving over the lake may occasionally enhance cloud cover or light snow, further reinforcing slick conditions on bridges, ramps, and untreated surfaces along Interstate 94 and local arterials.
The Wisconsin Department of Transportation urges drivers to remain cautious during early morning and overnight travel, when refreezing is most likely. Residents are encouraged to protect exposed pipes, limit prolonged outdoor exposure, and check on vulnerable neighbors and pets.
The Arctic pattern shows little indication of breaking before the end of the month, and additional cold-related advisories may be issued as confidence remains high in sustained below-normal temperatures across southern Wisconsin through Jan. 30.
