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I-55 Missouri Road Conditions
Radar and live pavement conditions on the 210 miles of I-55 in Missouri — plus closures, road work and city-by-city weather across the state.
Updated Sep 10, 2026 8:03 PM CDT · Mostly dry, wet in places
Lowest 77°F near Sikeston, Missouri · Highest wind 10 mph near Sikeston, Missouri
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I-55 runs 210 miles across Missouri. It passes Saint Louis.
- Interstate: I-55
- State: Missouri
- Length in state: 210 mi
Weather data from Sep 10, 2026 8:03 PM CDT
77°F
83°F
10 mph
29.86-29.97 inHg
Current I-55 in Missouri Conditions by State
Missouri I-55 in Missouri road conditions
Dry
- Saint Louis 77°F · 2 mph wind · Dry
- Sikeston 82°F · 10 mph wind · Dry
I-55 crosses 210 miles of Missouri, between the Arkansas line and the Illinois line. That is 22% of I-55's 964 miles.
Inside Missouri it meets I-44 and I-64 at Saint Louis.
No full closures are reported on I-55 in Missouri as of Sep 10, 2026 8:03 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.
Towns Along I-55 in Missouri
From Steele to St. Louis, with the position of each town measured along this stretch itself — counted from the Steele end, not from a state milepost, so it will not match the numbers on the signs.
- 3 mi Steele 2.9 mi off the road
- 33 mi Portageville
- 60 mi Sikeston 3.0 mi off the road
- 110 mi Jackson 2.0 mi off the road
- 149 mi Ste. Genevieve 4.3 mi off the road
- 179 mi Herculaneum
- 191 mi Arnold
- 198 mi Crestwood 3.7 mi off the road
- 198 mi Lakeshire 1.5 mi off the road
- 200 mi Shrewsbury 3.4 mi off the road
- 208 mi St. Louis 2.5 mi off the road
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
Saint Louis, MO weather
- Current weather conditions in Saint Louis, MO indicate a temperature of 71°F with a humidity level of 97%
- Winds are coming from the southeast at 2 to 4 mph
- Visibility is approximately 5.9 miles
- There is a low risk of rain with expected rainfall rates of 0.17 in/h anticipated about 40 to 50 minutes from now
- There are no active weather alerts at this time.
Sikeston, MO weather
- The current weather in Sikeston, MO, indicates a temperature of 76.6°F with a humidity level of 100%, creating a very humid environment
- The wind is blowing from the southeast at 4 mph
- Cloud cover is significant, with skies being mostly cloudy
- Visibility is good at approximately 8.0 miles
- The atmospheric pressure is measured at 30.0 inHg
- There are no active weather alerts at this time, and no precipitation is currently occurring.
I-55 in Missouri Road Weather FAQ
- Is Interstate 55 in Missouri closed right now?
- No full closures are reported on I-55 in Missouri. No lane closures or roadworks are reported either.
- What are I-55 in Missouri road conditions today?
- The map on this page colors the route along I-55 in Missouri by what is on the pavement right now — dry, wet, slush, snow or ice — from radar and surface data, last updated Sep 10, 2026 8:03 PM CDT. Right now temperatures run from 77°F to 83°F and the strongest wind is 10 mph.
- Where are Missouri road closures reported officially?
- Missouri's official traveler information service is traveler.modot.org, and it is where closures and restrictions are reported.
- How often are I-55 in Missouri 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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