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Radar and live pavement conditions on the 290 miles of I-55 in Mississippi — plus closures, road work and city-by-city weather across the state.
Updated Sep 10, 2026 7:18 PM CDT · Mostly dry, wet in places
Lowest 82°F near Jackson, Mississippi · Highest wind 10 mph near Tunica, Mississippi
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I-55 runs 290 miles across Mississippi. It passes Jackson.
Weather data from Sep 10, 2026 7:18 PM CDT
Dry
Official Mississippi road conditions (mdottraffic.com) ↗
I-55 crosses 290 miles of Mississippi, between the Louisiana line and the Tennessee line. That is 30% of I-55's 964 miles.
Inside Mississippi it meets I-20 at Jackson, and I-69 at Tunica.
4 current reports along the route. The 3 most serious are listed below. 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 |
|---|---|---|---|---|---|---|---|
| Jackson | 0.8" | 0.6 | 40.5 | 39.5 | Nov 12 | Mar 20 | 71 |
NOAA 1991–2020 Climate Normals, from a weather station in Mississippi. A dash is a figure that station does not report, not a zero.
From Magnolia to Southaven, with the position of each town measured along this stretch itself — counted from the Magnolia 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 10, 2026 7:04 AM CDT
The same live radar and road-surface data as this map, on your phone and on Apple CarPlay or Android Auto.
Weather Navigation carries the same radar and road-surface data on Apple CarPlay and Android Auto, with a weather-aware route planner, storm-cell tracking and radar that refreshes every two minutes over the US.