I-55 weather conditions near Mount Olive, Illinois
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 63°F 2025-09-21T06:50:00-05:00 Today 2025-09-21, Patchy Fog then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms after 4pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 84. Light south wind becoming southwest 5 to 9 mph in the morning.
Tonight 2025-09-21, T-storms. Showers and thunderstorms, mainly before 1am, then showers and possibly a thunderstorm after 1am. Low around 65. Southwest wind around 6 mph becoming light and variable. Chance of precipitation is 80%.
Monday 2025-09-22, Showers. Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. High near 77. Southeast wind 5 to 8 mph becoming southwest in the afternoon. Chance of precipitation is 80%.
Monday Night 2025-09-22, Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Tuesday 2025-09-23, Chance Showers. A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 40%.- Tuesday Night 2025-09-23, Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Wednesday 2025-09-24, Chance Showers. A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77.
Wednesday Night 2025-09-24, Chance Showers. A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.- Thursday 2025-09-25, Chance Showers. A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 73. Chance of precipitation is 40%.
Thursday Night 2025-09-25, Slight Chance Showers. A 20 percent chance of showers. Partly cloudy, with a low around 56.
Friday 2025-09-26, Slight Chance Showers. A 20 percent chance of showers. Mostly sunny, with a high near 75.
Friday Night 2025-09-26, Partly Cloudy. Partly cloudy, with a low around 55.
Saturday 2025-09-27, Sunny. Sunny, with a high near 78.