I-57 weather conditions near Johnston City, Illinois

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: NA°F 2025-12-12T12:27:12-00:00
• Today 2025-12-12, Partly Sunny. Partly sunny, with a high near 42. East northeast wind 5 to 10 mph becoming north northwest in the afternoon.
• Tonight 2025-12-12, Mostly Cloudy. Mostly cloudy, with a low around 27. North wind around 6 mph becoming calm in the evening.
• Saturday 2025-12-13, Partly Sunny. Partly sunny, with a high near 36. Light and variable wind becoming north 5 to 10 mph in the morning.
• Saturday Night 2025-12-13, Decreasing Clouds. Mostly cloudy, then gradually becoming mostly clear, with a low around 8. Wind chill values as low as -5. North wind 10 to 13 mph, with gusts as high as 21 mph.
• Sunday 2025-12-14, Sunny. Sunny, with a high near 17. North northwest wind 6 to 11 mph, with gusts as high as 20 mph.
• Sunday Night 2025-12-14, Mostly Clear. Mostly clear, with a low around 8. North wind around 5 mph becoming calm in the evening.
• Monday 2025-12-15, Sunny. Sunny, with a high near 35. Light south southeast wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
• Monday Night 2025-12-15, Mostly Clear. Mostly clear, with a low around 24. South southwest wind 5 to 7 mph.
• Tuesday 2025-12-16, Mostly Sunny. Mostly sunny, with a high near 46. South southwest wind 6 to 10 mph.
• Tuesday Night 2025-12-16, Mostly Cloudy. Mostly cloudy, with a low around 37. South southwest wind around 9 mph.
• Wednesday 2025-12-17, Mostly Cloudy. Mostly cloudy, with a high near 55. South southwest wind 9 to 13 mph, with gusts as high as 20 mph.
• Wednesday Night 2025-12-17, Chance Showers. A chance of showers. Mostly cloudy, with a low around 48. South southwest wind 10 to 14 mph, with gusts as high as 21 mph.
• Thursday 2025-12-18, Chance Showers. A chance of showers. Partly sunny, with a high near 59. South southwest wind 8 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph.