I-255 IL weather conditions near Saint Louis, Missouri

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Overcast 23°F 2025-12-13T10:53:00-06:00
• Today 2025-12-13, Slight Chance Snow. A 20 percent chance of snow before 5pm. Cloudy, with a temperature falling to around 19 by 5pm. North wind 8 to 14 mph.
• Tonight 2025-12-13, Gradual Clearing. Cloudy during the early evening, then gradual clearing, with a low around 7. North wind 13 to 15 mph, with gusts as high as 22 mph.
• Sunday 2025-12-14, Cold. Sunny and cold, with a high near 17. North wind 5 to 13 mph, with gusts as high as 22 mph.
• Sunday Night 2025-12-14, Clear. Clear, with a low around 9. Calm wind becoming south around 6 mph after midnight.
• Monday 2025-12-15, Sunny. Sunny, with a high near 42. Southwest wind 6 to 10 mph.
• Monday Night 2025-12-15, Mostly Clear. Mostly clear, with a low around 27.
• Tuesday 2025-12-16, Sunny. Sunny, with a high near 52.
• Tuesday Night 2025-12-16, Partly Cloudy. Partly cloudy, with a low around 37.
• Wednesday 2025-12-17, Mostly Sunny. Mostly sunny, with a high near 57.
• Wednesday Night 2025-12-17, Mostly Cloudy then Chance Rain. A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 46.
• Thursday 2025-12-18, Chance Rain. A 40 percent chance of rain. Mostly sunny, with a high near 58.
• Thursday Night 2025-12-18, Partly Cloudy. Partly cloudy, with a low around 28.
• Friday 2025-12-19, Partly Sunny. Partly sunny, with a high near 45.