I-57 weather conditions near Johnston City, Illinois

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Overcast 71°F 2025-06-17T00:55:00-05:00
• Overnight 2025-06-17, Chance T-storms and Patchy Fog. A 30 percent chance of showers and thunderstorms. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 70. Calm wind.
• Tuesday 2025-06-17, Chance T-storms and Patchy Fog. A 40 percent chance of showers and thunderstorms. Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 85. Southwest wind 3 to 7 mph.
• Tuesday Night 2025-06-17, Partly Cloudy. Partly cloudy, with a low around 74. South wind 5 to 7 mph.
• Wednesday 2025-06-18, Chance Showers then Showers Likely. A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. South southwest wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
• Wednesday Night 2025-06-18, Showers Likely. Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71. Southwest wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
• Juneteenth 2025-06-19, Slight Chance T-storms then Sunny. A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 85. West northwest wind 3 to 6 mph. Chance of precipitation is 10%.
• Thursday Night 2025-06-19, Mostly Clear. Mostly clear, with a low around 68. Calm wind.
• Friday 2025-06-20, Sunny. Sunny, with a high near 89. Calm wind becoming south 5 to 7 mph in the morning.
• Friday Night 2025-06-20, Mostly Clear. Mostly clear, with a low around 74. South wind around 6 mph.
• Saturday 2025-06-21, Sunny. Sunny, with a high near 93. South southwest wind 6 to 11 mph, with gusts as high as 18 mph.
• Saturday Night 2025-06-21, Clear. Clear, with a low around 76. South southwest wind 6 to 8 mph.
• Sunday 2025-06-22, Sunny. Sunny, with a high near 93. South southwest wind 6 to 9 mph.
• Sunday Night 2025-06-22, Mostly Clear. Mostly clear, with a low around 75. South wind 3 to 6 mph.
• Monday 2025-06-23, Chance T-storms. A chance of showers and thunderstorms. Sunny, with a high near 92. South wind 3 to 8 mph.