I-55 weather conditions near Arnold, Missouri

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Mostly Cloudy 63°F 2025-09-05T23:53:00-05:00
• Overnight 2025-09-06, Slight Chance Showers. A 20 percent chance of showers before 4am. Cloudy, with a low around 54. Northwest wind 3 to 5 mph.
• Saturday 2025-09-06, Sunny. Sunny, with a high near 79. Calm wind becoming northwest 5 to 8 mph in the afternoon.
• Saturday Night 2025-09-06, Mostly Clear. Mostly clear, with a low around 51. Northwest wind around 5 mph becoming calm in the evening.
• Sunday 2025-09-07, Sunny. Sunny, with a high near 78. Calm wind becoming north around 6 mph in the afternoon.
• Sunday Night 2025-09-07, Clear. Clear, with a low around 48. Light and variable wind.
• Monday 2025-09-08, Sunny. Sunny, with a high near 81.
• Monday Night 2025-09-08, Mostly Clear. Mostly clear, with a low around 52.
• Tuesday 2025-09-09, Sunny. Sunny, with a high near 86.
• Tuesday Night 2025-09-09, Mostly Clear. Mostly clear, with a low around 58.
• Wednesday 2025-09-10, Sunny. Sunny, with a high near 91.
• Wednesday Night 2025-09-10, Mostly Clear. Mostly clear, with a low around 61.
• Thursday 2025-09-11, Sunny. Sunny, with a high near 91.
• Thursday Night 2025-09-11, Mostly Clear. Mostly clear, with a low around 63.
• Friday 2025-09-12, Sunny. Sunny, with a high near 91.