I-55 Weather Conditions and Forecasts

2026-05-18 Roadnow

I-55 Thursday Night 2026-05-21 weather conditions

• detailI-55 Illinois: Mostly Cloudy, 83°F
• detailI-55 Missouri: Slight Chance Showers then Showers Likely, 86°F
• detailI-55 Arkansas: Showers, 85°F
• detailI-55 Tennessee: Showers, 85°F
• detailI-55 Mississippi: Chance T-storms, 85°F
• detailI-55 Louisiana: , 76°F

I-55 7 day weather forecast