I-255 IL weather conditions near Saint Louis, Missouri

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Overcast 36°F 2025-11-29T00:51:00-06:00
• Overnight 2025-11-29, Snow. Snow, mainly after 3am. Low around 31. Southeast wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 2 inches possible.
• Saturday 2025-11-29, Wintry Mix then Rain. Rain, possibly mixed with snow and sleet, becoming all rain after noon. High near 38. Southeast wind 13 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.
• Saturday Night 2025-11-29, Chance Rain then Cloudy. A 50 percent chance of rain before 9pm. Cloudy, with a low around 25. South wind 14 to 18 mph becoming west after midnight. Winds could gust as high as 33 mph.
• Sunday 2025-11-30, Mostly Cloudy. Mostly cloudy, with a high near 30. Northwest wind 9 to 15 mph, with gusts as high as 25 mph.
• Sunday Night 2025-11-30, Mostly Cloudy. Mostly cloudy, with a low around 20. Northwest wind 5 to 8 mph becoming light and variable after midnight.
• Monday 2025-12-01, Cloudy then Chance Snow. A 30 percent chance of snow after noon. Cloudy, with a high near 29.
• Monday Night 2025-12-01, Chance Snow then Slight Chance Snow. A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 20.
• Tuesday 2025-12-02, Partly Sunny. Partly sunny, with a high near 31.
• Tuesday Night 2025-12-02, Partly Cloudy. Partly cloudy, with a low around 20.
• Wednesday 2025-12-03, Mostly Sunny. Mostly sunny, with a high near 39.
• Wednesday Night 2025-12-03, Mostly Cloudy. Mostly cloudy, with a low around 21.
• Thursday 2025-12-04, Partly Sunny. Partly sunny, with a high near 31.
• Thursday Night 2025-12-04, Mostly Cloudy. Mostly cloudy, with a low around 22.
• Friday 2025-12-05, Partly Sunny. Partly sunny, with a high near 39.