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: Mostly Cloudy 84°F 2025-06-18T11:45:00-05:00 
Today 2025-06-18, Severe Thunderstorms. Showers and thunderstorms likely, mainly before 4pm. Some of the storms could be severe. Partly sunny, with a high near 88. Southwest wind 15 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 70%.
Tonight 2025-06-18, Severe Thunderstorms. A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 4am. Some of the storms could be severe and produce heavy rainfall. Mostly cloudy, with a low around 70. Southwest wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.- Juneteenth 2025-06-19, Decreasing Clouds. Mostly cloudy, then gradually becoming sunny, with a high near 85. Northwest wind around 7 mph.
Thursday Night 2025-06-19, Mostly Clear. Mostly clear, with a low around 67. Calm wind.
Friday 2025-06-20, Sunny. Sunny, with a high near 89. Calm wind becoming south southwest around 6 mph in the afternoon.- Friday Night 2025-06-20, Mostly Clear. Mostly clear, with a low around 73. South wind around 6 mph.
- Saturday 2025-06-21, Sunny. Sunny, with a high near 92. South wind 6 to 10 mph, with gusts as high as 18 mph.
- Saturday Night 2025-06-21, Mostly Clear. Mostly clear, with a low around 76. South wind 6 to 8 mph.
- Sunday 2025-06-22, Sunny. Sunny, with a high near 93. South southwest wind 6 to 8 mph.
Sunday Night 2025-06-22, Clear. Clear, with a low around 75. South wind around 6 mph becoming calm after midnight.- Monday 2025-06-23, Sunny. Sunny, with a high near 93. Calm wind becoming south around 6 mph in the morning.
- Monday Night 2025-06-23, Mostly Clear. Mostly clear, with a low around 75. South wind around 5 mph becoming calm in the evening.
Tuesday 2025-06-24, Slight Chance T-storms. A slight chance of showers and thunderstorms. Sunny, with a high near 92. Calm wind becoming south around 6 mph in the afternoon.