Expires:202512221130;;988012 FPUS53 KLOT 212032 ZFPLOT Zone Forecast Product National Weather Service Chicago/Romeoville, IL 232 PM CST Sun Dec 21 2025 ILZ105-221130- Southern Cook- Including the cities of Calumet City, Oak Forest, Lemont, Orland Park, and Park Forest 232 PM CST Sun Dec 21 2025 .TONIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 20s. South winds 5 to 10 mph. .MONDAY...Mostly cloudy. Highs in the lower 40s. South winds 10 to 15 mph with gusts up to 25 mph. .MONDAY NIGHT...Mostly cloudy. Near steady temperature in the upper 30s. Southwest winds around 10 mph. .TUESDAY...Mostly cloudy. Highs in the upper 40s. West winds 5 to 10 mph. .TUESDAY NIGHT...Mostly cloudy. Lows in the lower 30s. North winds around 5 mph, becoming east after midnight. .WEDNESDAY...Cloudy. A chance of rain and drizzle in the afternoon. Highs in the mid 40s. Chance of precipitation 30 percent. .WEDNESDAY NIGHT...Cloudy. Rain and drizzle likely in the evening, then a slight chance of drizzle after midnight. Patchy fog. Lows in the mid 40s. Chance of precipitation 60 percent. .CHRISTMAS DAY...Patchy fog in the morning. Mostly cloudy with a slight chance of drizzle. Highs in the lower 50s. .THURSDAY NIGHT...Mostly cloudy. A chance of rain in the evening. Lows in the lower 40s. Chance of precipitation 30 percent. .FRIDAY...Mostly cloudy in the morning, then becoming partly cloudy. Highs in the lower 50s. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 30s. .SATURDAY...Mostly cloudy. Highs in the upper 40s. .SATURDAY NIGHT...Mostly cloudy. Lows in the mid 20s. .SUNDAY...Partly cloudy in the morning, then clearing. Highs in the mid 30s. $$