Early-route check
Compare arrival timing here when wind and dust in the Southwest may affect the drive.
Southwest to Southeast corridor
I-40 weather for long cross-country drives
I-40 crosses desert, high plateau, plains, river valleys, and the southern Appalachians. Elevation and storm timing can create very different conditions along one trip.
Corridor coverage
Barstow, Flagstaff, Albuquerque, Amarillo, Oklahoma City, Little Rock, Memphis, Nashville, Knoxville, and Raleigh
Forecast timing can differ by segment. Check current weather and official road information before committing to a long-distance departure.
Representative sections
Where weather can change along this highway
1Barstow
2Flagstaff
3Albuquerque
4Amarillo
5Oklahoma City
6Memphis
7Knoxville
Weather risks
Conditions to compare before departure
- wind and dust in the Southwest
- snow around Flagstaff
- Plains severe thunderstorms
- heavy rain and fog near the Appalachians
Winter snow affects high-elevation Arizona and New Mexico. Spring severe weather is important across the Plains, and summer heat or flash flooding can affect western sections.
Departure comparison
How timing changes the corridor check
A highway-wide forecast is not one number. Compare when each departure reaches the sections most exposed to this corridor's recurring hazards.
Mid-route check
Compare arrival timing here when snow around Flagstaff may affect the drive.
Later-route check
Compare arrival timing here when Plains severe thunderstorms may affect the drive.
Current trip check
Finish this highway plan in DriveWindow
Enter your start, destination, date, and vehicle profile to compare the current forecast when you would reach each part of the corridor.
Compare departure times for this drive
Official verification
Road and weather sources
Use these sources for closures, restrictions, chain requirements, incidents, and official warnings.
Related route planning pages on this corridor
DriveWindow combines researched corridor geography with representative route points and official source links. route weather methodology · data-source policy. Use the app for the current forecast tied to a specific departure.
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