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 70°F 2025-10-12T10:45:00-05:00 
Today 2025-10-12, Sunny. Sunny, with a high near 80. Calm wind becoming southeast around 5 mph in the afternoon.Tonight 2025-10-12, Clear then Patchy Fog. Patchy fog after 3am. Otherwise, mostly clear, with a low around 52. Light east southeast wind.
Columbus Day 2025-10-13, Patchy Fog then Sunny. Patchy fog before 8am. Otherwise, sunny, with a high near 81. Light east southeast wind.
Monday Night 2025-10-13, Mostly Clear. Mostly clear, with a low around 56. Calm wind.
Tuesday 2025-10-14, Sunny. Sunny, with a high near 82. Calm wind becoming northeast around 6 mph in the afternoon.- Tuesday Night 2025-10-14, Mostly Clear. Mostly clear, with a low around 57. Calm wind.
- Wednesday 2025-10-15, Sunny. Sunny, with a high near 79. Northeast wind 3 to 7 mph.
Wednesday Night 2025-10-15, Clear. Clear, with a low around 52. Northeast wind around 5 mph becoming calm in the evening.- Thursday 2025-10-16, Sunny. Sunny, with a high near 76. East wind 3 to 8 mph.
- Thursday Night 2025-10-16, Mostly Clear. Mostly clear, with a low around 52. East southeast wind 3 to 5 mph.
- Friday 2025-10-17, Mostly Sunny. Mostly sunny, with a high near 81. South wind 5 to 10 mph.
Friday Night 2025-10-17, Partly Cloudy. Partly cloudy, with a low around 60. South wind around 7 mph.
Saturday 2025-10-18, Chance Showers. A chance of showers and thunderstorms. Mostly sunny, with a high near 79. South southwest wind 7 to 13 mph, with gusts as high as 18 mph.