I-55 weather conditions near Wilmington, Illinois
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fog/Mist 67°F 2025-09-21T01:35:00-05:00 
Overnight 2025-09-21, Scattered Showers. Scattered showers and thunderstorms. Cloudy, with a low around 65. South southeast wind around 5 mph. Chance of precipitation is 40%.Sunday 2025-09-21, Scattered Showers then Scattered T-storms. Scattered showers and thunderstorms. Mostly cloudy, with a high near 77. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 40%.
Sunday Night 2025-09-21, Chance T-storms then Showers Likely. A chance of showers and thunderstorms before 1am, then showers likely between 1am and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 62. West wind around 5 mph becoming south in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday 2025-09-22, Showers Likely. Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. South southwest wind 5 to 10 mph. Chance of precipitation is 60%.- Monday Night 2025-09-22, Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. South wind around 5 mph becoming calm. Chance of precipitation is 40%.
Tuesday 2025-09-23, Chance Showers. A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. Chance of precipitation is 40%.
Tuesday Night 2025-09-23, Chance T-storms. A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.Wednesday 2025-09-24, Chance Showers then Chance T-storms. A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 74.
Wednesday Night 2025-09-24, Chance Showers. A chance of showers. Mostly cloudy, with a low around 59.
Thursday 2025-09-25, Chance Showers. A chance of showers. Partly sunny, with a high near 72.
Thursday Night 2025-09-25, Chance Showers. A chance of showers. Partly cloudy, with a low around 55.
Friday 2025-09-26, Chance Showers. A chance of showers. Mostly sunny, with a high near 74.
Friday Night 2025-09-26, Partly Cloudy. Partly cloudy, with a low around 55.
Saturday 2025-09-27, Mostly Sunny. Mostly sunny, with a high near 74.