7-Day Forecast 41.63°N 88.1°W (Text-Only)
NWS Forecast for: Romeoville IL
Issued by: National Weather Service Chicago, IL
Last Update: 4:12 pm CDT Jul 13, 2025




Tonight: Partly cloudy, with a low around 64. West southwest wind around 5 mph.

Monday: Sunny, with a high near 87. Calm wind becoming west southwest around 5 mph in the morning.

Monday Night: Mostly clear, with a low around 66. West southwest wind around 5 mph becoming calm in the evening.

Tuesday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 90. Heat index values as high as 95. South wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

Tuesday Night: A slight chance of thunderstorms before 1am, then a slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Partly cloudy, with a low around 71. South wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 20%.

Wednesday: A chance of showers, with thunderstorms also possible after 7am. Mostly sunny, with a high near 89. Chance of precipitation is 50%.

Wednesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.

Thursday: A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85.

Thursday Night: A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 66.

Friday: Partly sunny, with a high near 82.

Friday Night: Partly cloudy, with a low around 64.

Saturday: Partly sunny, with a high near 84.

Saturday Night: Mostly cloudy, with a low around 67.

Sunday: A chance of showers and thunderstorms. Mostly sunny, with a high near 85.



Romeoville IL
 41.63°N 88.1°W

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