| NWS Forecast for: Chicago/Romeoville, Lewis University Airport IL Issued by: National Weather Service Chicago, IL Last Update: 8:41 pm CDT Jul 19, 2026 |  |
Tonight: Widespread smoke. Partly cloudy, with a low around 63. East wind around 5 mph becoming calm in the evening. Monday: Widespread smoke before 1pm. Mostly sunny, with a high near 86. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Monday Night: Showers and thunderstorms likely, mainly between 1am and 4am. Mostly cloudy, with a low around 73. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible. Tuesday: A 30 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 85. West northwest wind 10 to 15 mph, with gusts as high as 30 mph. Tuesday Night: Partly cloudy, with a low around 62. North wind 10 to 15 mph, with gusts as high as 20 mph. Wednesday: Sunny, with a high near 76. Wednesday Night: Mostly clear, with a low around 58. Thursday: Sunny, with a high near 81. Thursday Night: Partly cloudy, with a low around 61. Friday: Mostly sunny, with a high near 82. Friday Night: Partly cloudy, with a low around 63. Saturday: Sunny, with a high near 85. Saturday Night: Mostly clear, with a low around 66. Sunday: Mostly sunny, with a high near 89. | |
| Chicago/Romeoville, Lewis University Airport IL 41.61°N 88.1°W | |
Visit your local NWS office at: https://www.weather.gov/lot |
