Thunderstorms and Rainfall Impact: August Journeys

08-06-2026 to 08-08-2026

US Travel and Road Conditions Forecast — Attention travelers! We've got a dynamic weather week affecting our roadways, especially across the Middle Mississippi Valley into the Central/Southern Plains. From potential thunderstorms to air quality concerns, your daily commute may need some adjustments. Keep reading to find out the routes and interstates that could be significantly impacted over the next few days.

Thunderstorm Watch in Middle Mississippi Valley & Central/Southern Plains

On Thursday, expect severe thunderstorms across the Middle Mississippi Valley, affecting major routes like Interstate 55 and Interstate 70. These storms could produce damaging winds and hail. If you're traveling through Kansas City, MO or St. Louis, MO, be prepared for potential road closures and detours.

Rainfall Concerns from South Carolina to the Great Lakes

Expect heavy rain on Interstate 95 as it passes through Charleston, SC on Wednesday. The Upper Great Lakes will also see rainfall, impacting Interstate 90 near Chicago, IL. Drive with caution as localized flooding could cause delays.

Air Quality Alerts in the Pacific Northwest

Poor air quality alert is in effect for parts of the Pacific Northwest including Portland, OR and Seattle, WA, with smoke affecting visibility on Interstate 5 and Highway 97. Plan your routes accordingly and be mindful of health advisories.

Monsoonal Moisture in the Southwest

Monsoonal thunderstorms may affect Interstate 40 near Albuquerque, NM through Saturday. Look out for reduced visibility on roads and possible flash flooding.

Showers in the Upper Midwest & Ohio Valley

Thursday into Friday night, routes like Interstate 94 in Minneapolis, MN, and Interstate 80 in Columbus, OH will experience showers and potential thunderstorms. Keep a lookout for wet roads and pack some patience for possible slowdowns.

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