I-55 weather conditions near Arnold, Missouri

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Fair 50°F 2025-11-16T09:53:00-06:00
• Today 2025-11-16, Sunny. Sunny, with a high near 59. North wind around 6 mph becoming calm in the afternoon.
• Tonight 2025-11-16, Mostly Clear. Mostly clear, with a low around 37. Calm wind.
• Monday 2025-11-17, Increasing Clouds. Increasing clouds, with a high near 59. Calm wind becoming southeast 5 to 9 mph in the morning.
• Monday Night 2025-11-17, Chance T-storms then Showers Likely. A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 49. Southeast wind 6 to 8 mph. Chance of precipitation is 60%.
• Tuesday 2025-11-18, Chance Showers then Partly Sunny. A 30 percent chance of showers before noon. Partly sunny, with a high near 73. South wind 5 to 7 mph becoming west in the afternoon.
• Tuesday Night 2025-11-18, Slight Chance Rain. A 20 percent chance of rain. Mostly cloudy, with a low around 51.
• Wednesday 2025-11-19, Chance Rain. A 30 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 67.
• Wednesday Night 2025-11-19, Chance Rain then Rain Likely. Rain likely, mainly after midnight. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
• Thursday 2025-11-20, Rain. Rain and possibly a thunderstorm. High near 66. Chance of precipitation is 80%.
• Thursday Night 2025-11-20, Rain Likely. Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
• Friday 2025-11-21, Rain Likely. Rain likely. Partly sunny, with a high near 66. Chance of precipitation is 60%.
• Friday Night 2025-11-21, Chance Rain. A 30 percent chance of rain. Mostly cloudy, with a low around 42.
• Saturday 2025-11-22, Slight Chance Rain then Mostly Sunny. A 20 percent chance of rain. Partly sunny, with a high near 54.