7-Day Forecast 41.65°N 88.07°W (Text-Only)
NWS Forecast for: Romeoville IL
Issued by: National Weather Service Chicago, IL
Last Update: 4:12 pm CDT Jul 14, 2025




Tonight: Mostly clear, with a low around 66. West wind around 5 mph becoming calm.

Tuesday: Mostly sunny, with a high near 91. Heat index values as high as 97. Light south southeast wind becoming south 5 to 10 mph in the morning.

Tuesday Night: Partly cloudy, with a low around 71. South wind around 5 mph, with gusts as high as 10 mph.

Wednesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 101. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.

Wednesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. West southwest wind 5 to 10 mph.

Thursday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 82.

Thursday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 63.

Friday: Partly sunny, with a high near 82.

Friday Night: Partly cloudy, with a low around 65.

Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 85.

Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70.

Sunday: A chance of showers and thunderstorms. Mostly sunny, with a high near 87.

Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66.

Monday: A chance of showers and thunderstorms. Partly sunny, with a high near 86.



Romeoville IL
 41.65°N 88.07°W

Visit your local NWS office at: https://www.weather.gov/lot