I-55 weather conditions near Arnold, Missouri

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Fair 30°F 2025-11-17T05:53:00-06:00
• Today 2025-11-17, Sunny then Slight Chance Showers. A 20 percent chance of showers after 4pm. Increasing clouds, with a high near 59. Light southeast wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
• Tonight 2025-11-17, Chance T-storms then Chance Showers. A chance of showers and thunderstorms before midnight, then a chance of showers between midnight and 3am, then a chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 51. Southeast wind 6 to 9 mph. Chance of precipitation is 50%.
• Tuesday 2025-11-18, Chance Showers. A 40 percent chance of showers, mainly before 10am. Mostly sunny, with a high near 74. South wind around 7 mph becoming northwest in the afternoon.
• Tuesday Night 2025-11-18, Mostly Cloudy. Mostly cloudy, with a low around 47. North wind around 5 mph becoming calm in the evening.
• Wednesday 2025-11-19, Mostly Cloudy. Mostly cloudy, with a high near 62. Calm wind.
• Wednesday Night 2025-11-19, Slight Chance Rain then Chance Rain. A 50 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 50.
• Thursday 2025-11-20, Rain. Rain and possibly a thunderstorm. High near 67. Chance of precipitation is 90%.
• Thursday Night 2025-11-20, Rain. Rain. Low around 55. Chance of precipitation is 80%.
• Friday 2025-11-21, Rain Likely. Rain likely, mainly before noon. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.
• Friday Night 2025-11-21, Chance Rain. A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 44.
• Saturday 2025-11-22, Partly Sunny. Partly sunny, with a high near 56.
• Saturday Night 2025-11-22, Partly Cloudy. Partly cloudy, with a low around 40.
• Sunday 2025-11-23, Mostly Sunny. Mostly sunny, with a high near 59.