Illinois — A cold, still morning is settling across central Illinois, where frost is forming on lawns and windshields, creating slick bridge conditions and raising concerns for sensitive plants during the early commute.
According to the National Weather Service in Lincoln, a Frost Advisory remains in effect until 8 a.m., with temperatures near 34°F already producing frost. A stronger Freeze Warning follows early Monday from 1 a.m. to 8 a.m., when lows could dip to 30°F across Champaign, Peoria, Bloomington, and surrounding communities.
Across Champaign-Urbana, Normal, and Decatur, drivers may encounter isolated slick spots where moisture refreezes, especially on elevated roadways like I-55 and I-72. Winds remain light this morning but could gust up to 30 mph later today, briefly drying surfaces before temperatures drop again tonight.
The risk intensifies late tonight into early Monday, when widespread frost and freezing conditions settle in. Gardeners should cover plants and bring potted vegetation indoors. Sensitive outdoor plumbing may also be at risk if left exposed.
Meanwhile, minor flooding continues along the Illinois River near Havana, with additional rises possible through midweek. Low-lying roads near the river may remain closed or hazardous.
By Tuesday, a dramatic warm-up begins, with highs climbing to 76°F, followed by 77°F Wednesday. Meteorologists are tracking this sharp shift, which could help trigger showers and thunderstorms by Thursday and Friday. While severe weather is not certain, gusty winds and brief heavy rain are possible.
Take action now: protect plants, watch for slick roads, and avoid flooded areas.
Cold conditions ease after Monday morning, but alerts may expand as river levels and temperatures fluctuate.
Five Day Forecast for Champaign, Illinois
Monday: Sunny, high 58°F
Tuesday: Mostly sunny, high 76°F
Wednesday: Mostly sunny, high 77°F
Thursday: Chance of storms, high 82°F
Friday: Showers likely, high 75°F
