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I-40 Tennessee Road Conditions
Radar and live pavement conditions on the 455 miles of I-40 in Tennessee — plus closures, road work and city-by-city weather across the state.
Updated Sep 11, 2026 1:03 AM UTC · Mostly dry, wet in places
Lowest 75°F near Knoxville, Tennessee · Highest wind 16 mph near Nashville, Tennessee
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Interstate 40 crosses Tennessee for 455 miles — the longest stretch of I-40 in any state — running the full width of it from the Mississippi River at Memphis to the Pigeon River Gorge on the North Carolina line. It links all three of the state’s major cities and climbs the Cumberland Plateau between Nashville and Knoxville, where winter weather regularly separates the two ends of the drive.
- Road system: Interstate Highway System
- Length: 455 miles
- Runs from: Memphis (Arkansas line) to the Pigeon River Gorge (North Carolina line)
- Cities served: Memphis, Jackson, Nashville, Knoxville
Weather data from Sep 11, 2026 1:03 AM UTC
75°F
93°F
16 mph
29.85-29.96 inHg
Current I-40 in Tennessee Conditions by State
Tennessee I-40 in Tennessee road conditions
Dry
- Memphis 93°F · 5 mph wind · Dry
- Nashville 86°F · 6 mph wind · Dry
- Knoxville 82°F · 4 mph wind · Dry
I-40 crosses 455 miles of Tennessee, between the North Carolina line and the Arkansas line. That is 18% of I-40's 2,555 miles.
Inside Tennessee it meets I-65 and I-24 at Nashville, I-75 at Knoxville, and I-81.
No full closures are reported on I-40 in Tennessee as of Sep 11, 2026 1:03 AM UTC, and no lane closures or roadworks either. Always check with the responsible state DOT before setting off.
| Place | Snow a year | Snow days | Freezing nights | Freeze–thaw days | First freeze | Last freeze | Days over 90°F |
|---|---|---|---|---|---|---|---|
| Memphis | 3.8" | 2.8 | 42.8 | 38.4 | Nov 16 | Mar 18 | 64.3 |
| Nashville | 6.3" | 6.2 | 70.8 | 63.8 | Nov 2 | Apr 6 | 40 |
| Knoxville | 6.5" | 4.2 | 67 | 62.2 | Nov 2 | Apr 4 | 31.4 |
NOAA 1991–2020 Climate Normals, from 3 weather stations in Tennessee. A dash is a figure that station does not report, not a zero.
Towns Along I-40 in Tennessee
From Memphis to Newport, with the position of each town measured along this stretch itself — counted from the Memphis end, not from a state milepost, so it will not match the numbers on the signs.
- 3 mi Memphis 4.2 mi off the road
- 42 mi Mason 4.5 mi off the road
- 85 mi Jackson 1.0 mi off the road
- 175 mi Dickson 3.1 mi off the road
- 191 mi Kingston Springs
- 213 mi Berry Hill 2.1 mi off the road
- 251 mi Watertown 4.9 mi off the road
- 290 mi Cookeville
- 345 mi Rockwood 1.2 mi off the road
- 368 mi Lenoir City 3.7 mi off the road
- 390 mi Knoxville
- 438 mi Newport
Places from the US Census Gazetteer and population estimates, both public domain; distances measured along this page's own route geometry.
Summaries fetched Sep 10, 2026 12:06 PM UTC
Memphis, TN weather
- Memphis, TN is currently experiencing a heat advisory in effect from 11:00 AM to 8:00 PM today
- The temperature is 79.9°F and the maximum feels like temperature is expected to reach 102.9°F later in the day, indicating a significant risk for heat-related impacts
- The humidity is at 77%, contributing to the discomfort, while the wind is blowing from the south-southwest at 7 to 16 mph
- Visibility is good at 5 miles, and the atmospheric pressure is measured at 30.06 inHg
- Overall, individuals should take precautions to stay cool and hydrated during this heat advisory period.
Nashville, TN weather
- Current weather conditions for Nashville, TN indicate that the maximum feels-like temperature is forecasted to reach approximately 100.8°F in the next 5 to 6 hours, which presents a low temperature risk for outdoor activities
- The temperature is currently at 82.6°F with a dew point of 68.2°F and a humidity level of 62%
- Winds are coming from the south-southwest at around 5 to 10 mph
- The sky is cloudy, covering about 100% of the sky
- Visibility is good at 9.9 miles
- There are currently no active weather alerts for the area.
Knoxville, TN weather
- Current weather conditions in Knoxville, TN show a temperature of 67.6°F with a relative humidity of 93%
- The wind is blowing from the southwest at 3 to 6 mph
- The atmospheric pressure is 30.15 inHg, and visibility is good at 9.9 miles
- The weather is clear and sunny, providing pleasant conditions for outdoor activities
- There are no active weather alerts at this time.
I-40 in Tennessee Road Weather FAQ
- Is Interstate 40 in Tennessee closed right now?
- No full closures are reported on I-40 in Tennessee. No lane closures or roadworks are reported either.
- What are I-40 in Tennessee road conditions today?
- The map on this page colors the route along I-40 in Tennessee by what is on the pavement right now — dry, wet, slush, snow or ice — from radar and surface data, last updated Sep 11, 2026 1:03 AM UTC. Right now temperatures run from 75°F to 93°F and the strongest wind is 16 mph.
- Where are Tennessee road closures reported officially?
- Tennessee's official traveler information service is smartway.tn.gov, and it is where closures and restrictions are reported.
- How often are I-40 in Tennessee road conditions updated?
- The road surface and weather layers are rebuilt whenever this page is opened with data more than ten minutes old, and refreshed on a schedule in between, so nothing here is more than about two hours old even on a road nobody has looked at. Closures and road blocks are re-imported from the state 511 feeds every fifteen minutes, and the written state-by-state summaries are refreshed daily. Every section on this page carries the time its data was fetched.
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