I-55 weather conditions near Atlanta, Illinois
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Current Weather Conditions
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7 day weather forecast
Current condition: Fair 95°F 2025-08-16T14:55:00-05:00 
This Afternoon 2025-08-16, Slight Chance T-storms. A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93. Heat index values as high as 105. Southwest wind around 8 mph.
Tonight 2025-08-16, Slight Chance T-storms. A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 73. South wind 5 to 7 mph. Chance of precipitation is 20%.Sunday 2025-08-17, Mostly Sunny then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Heat index values as high as 102. Light and variable wind becoming southeast around 5 mph.
Sunday Night 2025-08-17, Partly Cloudy. Partly cloudy, with a low around 73. Calm wind becoming east southeast around 5 mph after midnight.
Monday 2025-08-18, Sunny. Sunny, with a high near 93. Southeast wind around 7 mph becoming southwest in the afternoon.
Monday Night 2025-08-18, Mostly Clear. Mostly clear, with a low around 73. South southwest wind around 5 mph.Tuesday 2025-08-19, Mostly Sunny then Chance T-storms. A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Southwest wind around 7 mph becoming west northwest in the afternoon.
- Tuesday Night 2025-08-19, Partly Cloudy. Partly cloudy, with a low around 68.
Wednesday 2025-08-20, Partly Sunny. Partly sunny, with a high near 81.- Wednesday Night 2025-08-20, Partly Cloudy. Partly cloudy, with a low around 62.
- Thursday 2025-08-21, Sunny. Sunny, with a high near 82.
- Thursday Night 2025-08-21, Mostly Clear. Mostly clear, with a low around 62.
Friday 2025-08-22, Sunny. Sunny, with a high near 84.