Illinois – A cool, gray start hangs over Chicago this morning, but the air is already shifting. Pavement is dry for now, yet a rapid warm-up is building that will change conditions quickly over the next 48 hours.
According to the National Weather Service, temperatures climb from the low 40s into the low 60s by midday, with southwest winds gusting near 20 mph. That warmer flow strengthens into Monday, pushing highs into the mid-70s across the Chicago metro.
This early taste of spring will feel comfortable, but it sets the stage for unsettled weather. By late Monday night, scattered showers and a slight chance of thunderstorms begin to develop. Roads may turn slick for early commuters, especially along I-90 and I-94.
Conditions shift more aggressively Tuesday afternoon. Rain chances increase to around 80%, with periods of showers and possible thunderstorms spreading across Cook County. Expect reduced visibility and ponding on roadways during heavier bursts. Plan extra travel time.
Behind the system, cooler air pushes back in quickly. By Wednesday, highs drop into the low 40s, and lingering moisture may mix with wet snow by Wednesday night. While accumulation looks limited, temperatures near freezing raise the risk of brief slick spots—especially on bridges.
This is a classic late-March swing: mild, then messy, then colder again. Keep layers handy and watch for quick changes during the evening commute.
Five Day Outlook for Chicago, IL:
Sunday: Partly sunny, high near 61°F
Monday: Mostly sunny, high near 74°F
Tuesday: Showers likely, high near 75°F
Wednesday: Mostly cloudy, high near 42°F
Thursday: Chance of rain/snow, high near 43°F
