I-55 weather conditions near Herculaneum, Missouri

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Fair 79°F 2025-10-12T12:53:00-05:00
• This Afternoon 2025-10-12, Sunny. Sunny, with a high near 81. Southeast wind around 7 mph.
• Tonight 2025-10-12, Mostly Clear then Patchy Fog. Patchy fog after 2am. Otherwise, mostly clear, with a low around 55. Southeast wind 3 to 5 mph.
• Columbus Day 2025-10-13, Areas Fog then Mostly Sunny. Areas of fog before 8am. Otherwise, mostly sunny, with a high near 81. Calm wind.
• Monday Night 2025-10-13, Partly Cloudy. Partly cloudy, with a low around 57. Calm wind.
• Tuesday 2025-10-14, Mostly Sunny. Mostly sunny, with a high near 84. Light and variable wind.
• Tuesday Night 2025-10-14, Partly Cloudy. Partly cloudy, with a low around 57.
• Wednesday 2025-10-15, Mostly Sunny. Mostly sunny, with a high near 79.
• Wednesday Night 2025-10-15, Mostly Clear. Mostly clear, with a low around 53.
• Thursday 2025-10-16, Sunny. Sunny, with a high near 78.
• Thursday Night 2025-10-16, Partly Cloudy. Partly cloudy, with a low around 53.
• Friday 2025-10-17, Mostly Sunny. Mostly sunny, with a high near 84.
• Friday Night 2025-10-17, Partly Cloudy then Slight Chance Showers. A 20 percent chance of showers. Partly cloudy, with a low around 59.
• Saturday 2025-10-18, Chance Showers. A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79.