National Weather Service Forecast for: Romeoville IL
Issued by: National Weather Service Chicago, IL
Updated: 1:41 pm CDT May 31, 2025
 
This
Afternoon
This Afternoon: Mostly sunny, with a high near 68. Northeast wind around 10 mph.
Mostly Sunny


Tonight

Tonight: Partly cloudy, with a low around 45. East northeast wind 5 to 10 mph becoming light and variable  after midnight. Winds could gust as high as 15 mph.
Partly Cloudy


Sunday

Sunday: Mostly sunny, with a high near 74. Calm wind becoming northwest around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Mostly Sunny


Sunday
Night
Sunday Night: Partly cloudy, with a low around 52. East wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.
Partly Cloudy


Monday

Monday: Sunny, with a high near 88. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Sunny


Monday
Night
Monday Night: Partly cloudy, with a low around 66.
Partly Cloudy


Tuesday

Tuesday: A 20 percent chance of showers after 1pm.  Partly sunny, with a high near 89. Breezy.
Partly Sunny
then Slight
Chance
Showers and
Breezy
Tuesday
Night
Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 67.
Chance
T-storms then
Showers
Likely
Wednesday

Wednesday: Showers likely, with thunderstorms also possible after 1pm.  Cloudy, with a high near 78.
Showers
Likely

Hi 68 °F Lo 45 °F Hi 74 °F Lo 52 °F Hi 88 °F Lo 66 °F Hi 89 °F Lo 67 °F Hi 78 °F

 

This Afternoon
 
Mostly sunny, with a high near 68. Northeast wind around 10 mph.
Tonight
 
Partly cloudy, with a low around 45. East northeast wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.
Sunday
 
Mostly sunny, with a high near 74. Calm wind becoming northwest around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Sunday Night
 
Partly cloudy, with a low around 52. East wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.
Monday
 
Sunny, with a high near 88. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
 
Partly cloudy, with a low around 66.
Tuesday
 
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 89. Breezy.
Tuesday Night
 
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67.
Wednesday
 
Showers likely, with thunderstorms also possible after 1pm. Cloudy, with a high near 78.
Wednesday Night
 
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 58.
Thursday
 
A chance of showers. Cloudy, with a high near 72.
Thursday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Friday
 
Mostly sunny, with a high near 76.

 

Forecast from NOAA-NWS for Romeoville IL.