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: Mostly Cloudy 75°F 2025-09-21T17:15:00-05:00 
This Afternoon 2025-09-21, Isolated T-storms. Isolated showers and thunderstorms. Partly sunny, with a steady temperature around 78. Southwest wind around 5 mph. Chance of precipitation is 20%.
Tonight 2025-09-21, Chance Showers. A 40 percent chance of showers and thunderstorms, mainly after 10pm. Mostly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm.Monday 2025-09-22, Chance Showers then Chance T-storms. A 50 percent chance of showers and thunderstorms, mainly before 4pm. Partly sunny, with a high near 79. South southwest wind 5 to 10 mph.
Monday Night 2025-09-22, Chance Showers. A slight chance of showers and thunderstorms, then a chance of showers after 7pm. Partly cloudy, with a low around 62. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.Tuesday 2025-09-23, Slight Chance Showers then Chance T-storms. A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79. Calm wind becoming south southeast around 5 mph in the afternoon. Chance of precipitation is 30%.
Tuesday Night 2025-09-23, Chance T-storms then Chance Showers. A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Wednesday 2025-09-24, Chance Showers. A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 4pm, then a chance of showers after 4pm. Mostly cloudy, with a high near 74. Chance of precipitation is 40%.
Wednesday Night 2025-09-24, Chance Showers. A chance of showers. Mostly cloudy, with a low around 60.
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. Mostly cloudy, with a low around 56.
Friday 2025-09-26, Mostly Sunny. Mostly sunny, with a high near 74.
Friday Night 2025-09-26, Partly Cloudy. Partly cloudy, with a low around 54.- Saturday 2025-09-27, Mostly Sunny. Mostly sunny, with a high near 78.
- Saturday Night 2025-09-27, Partly Cloudy. Partly cloudy, with a low around 55.
Sunday 2025-09-28, Sunny. Sunny, with a high near 77.