I-57 weather conditions near Johnston City, Illinois
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 63°F 2025-10-15T22:15:00-05:00 
Tonight 2025-10-15, Mostly Clear. Mostly clear, with a low around 57. Calm wind.
Thursday 2025-10-16, Sunny. Sunny, with a high near 81. Light east wind increasing to 5 to 9 mph in the morning.- Thursday Night 2025-10-16, Partly Cloudy. Partly cloudy, with a low around 55. East southeast wind around 6 mph.
Friday 2025-10-17, Partly Sunny. Partly sunny, with a high near 80. South southeast wind 5 to 8 mph.- Friday Night 2025-10-17, Partly Cloudy. Partly cloudy, with a low around 62. South southeast wind around 6 mph.
Saturday 2025-10-18, Chance Showers then Showers Likely. A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. South southwest wind 9 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Saturday Night 2025-10-18, Showers. Showers and possibly a thunderstorm before 1am, then showers likely. Low around 52. South southwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Sunday 2025-10-19, Chance Showers. A chance of showers, mainly before 1pm. Mostly sunny, with a high near 66. West northwest wind 13 to 17 mph, with gusts as high as 23 mph.
Sunday Night 2025-10-19, Clear. Clear, with a low around 43. West southwest wind 3 to 8 mph.
Monday 2025-10-20, Sunny. Sunny, with a high near 72. South southwest wind 6 to 13 mph, with gusts as high as 18 mph.- Monday Night 2025-10-20, Mostly Clear. Mostly clear, with a low around 51. Southwest wind 7 to 9 mph.
- Tuesday 2025-10-21, Slight Chance Showers. A slight chance of showers. Sunny, with a high near 75. West southwest wind 9 to 15 mph, with gusts as high as 21 mph.
Tuesday Night 2025-10-21, Slight Chance Showers. A slight chance of showers. Mostly clear, with a low around 47. West southwest wind 6 to 9 mph.
Wednesday 2025-10-22, Mostly Sunny. Mostly sunny, with a high near 70. West wind 6 to 11 mph.