National Weather Service Forecast for: Wheaton IL
Issued by: National Weather Service Chicago, IL
Updated: 4:11 am CST Dec 5, 2025
 
Today

Today: Patchy freezing fog before 9am. Partly sunny, with a high near 26. Wind chill values as low as -7. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Patchy
Freezing Fog
then Partly
Sunny
 Tonight

Tonight: Patchy snow and freezing rain between 9pm and 3am. Mostly cloudy, with a temperature rising to around 30 by 2am. South southwest wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 30%.
Patchy Wintry
Mix

 Saturday

Saturday: Partly sunny, with a temperature falling to around 22 by 5pm. West northwest wind 5 to 10 mph.
Partly Sunny

 Saturday
Night
Saturday Night: Snow, mainly after midnight. Low around 17. Calm wind becoming north northeast around 5 mph after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Slight Chance
Snow then
Snow
 Sunday

Sunday: Snow likely before noon. Partly sunny, with a high near 26. North wind 5 to 15 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 8.
Slight Chance
Snow Showers
then Mostly
Cloudy
 Monday

Monday: Partly sunny, with a high near 21.
Partly Sunny

 Monday
Night
Monday Night: A chance of snow. Mostly cloudy, with a low around 14.
Chance Snow

 Tuesday

Tuesday: Mostly cloudy, with a high near 34.
Mostly Cloudy
Hi 26 °F Lo 24 °F⇑ Hi 26 °F⇓ Lo 17 °F Hi 26 °F Lo 8 °F Hi 21 °F Lo 14 °F Hi 34 °F

Hazardous Weather Outlook
Hydrologic Outlook
 

Today
 
 Patchy freezing fog before 9am. Partly sunny, with a high near 26. Wind chill values as low as -7. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
 
 Patchy snow and freezing rain between 9pm and 3am. Mostly cloudy, with a temperature rising to around 30 by 2am. South southwest wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 30%.
Saturday
 
 Partly sunny, with a temperature falling to around 22 by 5pm. West northwest wind 5 to 10 mph.
Saturday Night
 
 Snow, mainly after midnight. Low around 17. Calm wind becoming north northeast around 5 mph after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Sunday
 
 Snow likely before noon. Partly sunny, with a high near 26. North wind 5 to 15 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 8.
Monday
 
 Partly sunny, with a high near 21.
Monday Night
 
 A chance of snow. Mostly cloudy, with a low around 14.
Tuesday
 
 Mostly cloudy, with a high near 34.
Tuesday Night
 
 Rain and snow likely, becoming all rain after midnight. Cloudy, with a low around 28.
Wednesday
 
 A chance of rain and snow. Cloudy, with a high near 35.
Wednesday Night
 
 A chance of snow. Mostly cloudy, with a low around 13.
Thursday
 
 Partly sunny, with a high near 22.

 

Forecast from NOAA-NWS for Wheaton IL.