I-55 weather conditions near Joliet, Illinois
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fog 64°F 2025-09-21T03:55:00-05:00 
Overnight 2025-09-21, Chance Showers and Patchy Fog. A 40 percent chance of showers and thunderstorms. Patchy fog. Otherwise, cloudy, with a low around 64. Southeast wind around 5 mph.Sunday 2025-09-21, Chance Showers and Patchy Fog then Chance T-storms. A 40 percent chance of showers and thunderstorms. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 79. South southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
Sunday Night 2025-09-21, Chance T-storms then Showers Likely. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. West wind around 5 mph becoming south in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday 2025-09-22, Showers Likely. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 75. South southwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%.- Monday Night 2025-09-22, Chance Showers. A 40 percent chance of showers. Mostly cloudy, with a low around 63. South wind around 5 mph becoming calm.
Tuesday 2025-09-23, Chance Showers. A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79. Chance of precipitation is 40%.Tuesday Night 2025-09-23, Slight Chance T-storms then Slight Chance Showers. A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 20%.
Wednesday 2025-09-24, Mostly Cloudy. Mostly cloudy, with a high near 74.
Wednesday Night 2025-09-24, Mostly Cloudy. Mostly cloudy, with a low around 59.
Thursday 2025-09-25, Chance Showers. A chance of showers. Partly sunny, with a high near 73.- Thursday Night 2025-09-25, Mostly Cloudy. Mostly cloudy, with a low around 56.
Friday 2025-09-26, Mostly Sunny then 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 56.
Saturday 2025-09-27, Mostly Sunny. Mostly sunny, with a high near 75.