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Radar, DOT cameras and live pavement conditions on the 41 miles of I-64 in Missouri — plus closures, road work and city-by-city weather across the state.
Updated Sep 14, 2026 9:33 PM CDT · Mostly dry
Lowest 82°F near Saint Louis, Missouri · Highest wind 10 mph near Saint Louis, Missouri
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I-64 runs 41 miles across Missouri. It passes Saint Louis.
Weather data from Sep 14, 2026 9:33 PM CDT
Dry
Official Missouri road conditions (traveler.modot.org) ↗
I-64 crosses 41 miles of Missouri, from the Illinois line to its end in the state. That is 7% of I-64's 593 miles.
Inside Missouri it meets I-70, I-44 and I-55 at Saint Louis.
By mile marker, I-64 passes Saint Louis 39. It is the only city on this stretch that the mileposts name.
No full closures are reported on I-64 in Missouri as of Sep 14, 2026 9:33 PM CDT, 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 |
|---|---|---|---|---|---|---|---|
| Saint Louis | 17.7" | 14.5 | 83.8 | 64 | Nov 3 | Apr 3 | 38.8 |
NOAA 1991–2020 Climate Normals, from a weather station in Missouri. A dash is a figure that station does not report, not a zero.
From Wentzville to St. Louis, with the position of each town measured along this stretch itself — counted from the Wentzville end, not from a state milepost, so it will not match the numbers on the signs.
Places from the US Census Gazetteer and population estimates, both public domain; distances measured along this page's own route geometry.
Summaries fetched Sep 14, 2026 7:04 AM CDT
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