I-255 IL weather conditions near Saint Louis, Missouri

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Fair 77°F 2025-07-10T07:53:00-05:00
• Today 2025-07-10, Sunny. Sunny, with a high near 93. Calm wind becoming south around 6 mph in the afternoon.
• Tonight 2025-07-10, Mostly Clear. Mostly clear, with a low around 73. South wind around 6 mph.
• Friday 2025-07-11, Sunny. Sunny, with a high near 96. Heat index values as high as 105. Calm wind becoming south around 6 mph in the morning.
• Friday Night 2025-07-11, Chance T-storms. A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. South wind 3 to 6 mph.
• Saturday 2025-07-12, Slight Chance T-storms then Chance T-storms. A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 93. Southwest wind 5 to 8 mph.
• Saturday Night 2025-07-12, Chance T-storms. A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 73.
• Sunday 2025-07-13, Chance T-storms. A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 90.
• Sunday Night 2025-07-13, Slight Chance T-storms. A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 71.
• Monday 2025-07-14, Mostly Sunny then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.
• Monday Night 2025-07-14, Slight Chance T-storms. A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 72.
• Tuesday 2025-07-15, Chance T-storms. A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 93.
• Tuesday Night 2025-07-15, Chance T-storms. A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
• Wednesday 2025-07-16, Chance Showers then Chance T-storms. A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.