National Weather Service Forecast for: Oak Lawn IL
Issued by: National Weather Service Chicago, IL
Updated: 5:30 am CST Dec 5, 2025
 
Today

Today: Partly sunny, with a high near 27. Wind chill values as low as -4. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Partly Sunny

 Tonight

Tonight: Patchy snow and freezing rain after 9pm. Mostly cloudy, with a temperature rising to around 30 by 1am. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Patchy Wintry
Mix

 Saturday

Saturday: Mostly cloudy, with a temperature falling to around 24 by 5pm. West northwest wind around 5 mph, with gusts as high as 15 mph.
Mostly Cloudy

 Saturday
Night
Saturday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 20. Calm wind becoming east northeast around 5 mph after midnight. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Slight Chance
Snow then
Snow Likely
 Sunday

Sunday: Snow likely before noon. Mostly cloudy, with a high near 28. North northwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Snow Likely
then Partly
Sunny
 Sunday
Night
Sunday Night: A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 11.
Slight Chance
Snow Showers
then Mostly
Cloudy
 Monday

Monday: Partly sunny, with a high near 22.
Partly Sunny

 Monday
Night
Monday Night: A chance of snow. Mostly cloudy, with a low around 15.
Chance Snow

 Tuesday

Tuesday: Mostly cloudy, with a high near 35.
Mostly Cloudy
Hi 27 °F Lo 25 °F⇑ Hi 28 °F⇓ Lo 20 °F Hi 28 °F Lo 11 °F Hi 22 °F Lo 15 °F Hi 35 °F

Hazardous Weather Outlook
Hydrologic Outlook
 

Today
 
 Partly sunny, with a high near 27. Wind chill values as low as -4. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
 
 Patchy snow and freezing rain after 9pm. Mostly cloudy, with a temperature rising to around 30 by 1am. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Saturday
 
 Mostly cloudy, with a temperature falling to around 24 by 5pm. West northwest wind around 5 mph, with gusts as high as 15 mph.
Saturday Night
 
 Snow likely, mainly after midnight. Mostly cloudy, with a low around 20. Calm wind becoming east northeast around 5 mph after midnight. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Sunday
 
 Snow likely before noon. Mostly cloudy, with a high near 28. North northwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Sunday Night
 
 A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 11.
Monday
 
 Partly sunny, with a high near 22.
Monday Night
 
 A chance of snow. Mostly cloudy, with a low around 15.
Tuesday
 
 Mostly cloudy, with a high near 35.
Tuesday Night
 
 A chance of rain and snow before midnight, then rain likely. Cloudy, with a low around 29.
Wednesday
 
 A chance of rain and snow. Cloudy, with a high near 36.
Wednesday Night
 
 A chance of snow. Mostly cloudy, with a low around 16.
Thursday
 
 Partly sunny, with a high near 24.

 

Forecast from NOAA-NWS for Oak Lawn IL.