Chicago, IL – Dense fog and drizzle are creating hazardous travel conditions across northern Illinois, persisting into Thursday morning. The National Weather Service warns drivers of low visibility, especially on interstates and major roadways such as I-55 and I-90.
According to the National Weather Service (NWS) Chicago office, fog is expected to intensify Wednesday night into early Thursday, with some areas experiencing near-zero visibility. Motorists are urged to slow down, use low-beam headlights, and allow extra travel time. The elevated fog risk will ease by mid-morning Thursday but will return intermittently through the weekend as warmer air and periodic rain move into the region.
Thursday’s forecast calls for highs in the mid-40s, with drizzle and scattered rain showers. By Friday, rain becomes more likely, with a 90% chance of precipitation and highs near 49°F. Saturday will bring the warmest temperatures of the week, peaking at 53°F, but rain chances remain at 60%, impacting late-weekend travel.
Looking ahead, Sunday offers a slight break in the rainfall, but patchy drizzle remains possible. Cooler temperatures return early next week with highs in the mid-40s.
Travelers are advised to monitor weather updates closely and consider rescheduling non-essential trips during periods of dense fog or heavy rain. Pedestrians should also exercise caution, particularly during low-visibility conditions near high-traffic intersections.
For up-to-date weather alerts and detailed forecasts, visit weather.gov/chicago.
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