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I-55 Interstate Road Conditions
I-55 Road Conditions & Weather
Radar, DOT cameras and live pavement conditions along I-55 from Louisiana to Illinois — plus closures, road work and the drive broken down state by state.
Updated Oct 9, 2026 3:03 AM UTC · 6 states · Mostly dry
Lowest 55°F near Chicago, Illinois · Highest wind 18 mph near New Orleans, Louisiana
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Interstate 55 (I-55) runs from LaPlace, Louisiana, west of New Orleans, to Chicago, Illinois, providing a major north–south route along the Mississippi River corridor through the central United States. It passes through cities such as Jackson, Memphis, St. Louis, Springfield, Bloomington–Normal, and Chicago. From St. Louis into Chicago, Route 55 follows the other half of that same US-66 alignment.
- Road system: Interstate Highway System
- Year of construction: 1957s
- Length: 964 miles
Weather data from Oct 9, 2026 3:03 AM UTC
55°F
81°F
18 mph
29.88-30.13 inHg
Current I-55 Conditions by State
Missouri I-55 road conditions
Dry
- Saint Louis 66°F · 0 mph wind · Dry
- Sikeston 64°F · 3 mph wind · Dry
Illinois I-55 road conditions
Dry
- Springfield 63°F · 1 mph wind · Dry
- Chicago 59°F · 1 mph wind · Dry
Official Illinois road conditions (Getting Around Illinois) ↗
Measured state by state, I-55 runs 944 miles south to north from LaPlace, Louisiana to Chicago, Illinois, crossing 6 states. Its longest stretch is 294 miles across Illinois; its shortest is 12 miles in Tennessee.
| State | Miles | Share | Cities and mile markers |
|---|---|---|---|
| Louisiana | 66 | 7% | — |
| Mississippi | 290 | 31% | Jackson 95 · Tunica 269 (24 mi off) |
| Tennessee | 12 | 1% | Memphis 12 |
| Arkansas | 72 | 8% | Blytheville 66 |
| Missouri | 210 | 22% | Sikeston 67 · Saint Louis 209 |
| Illinois | 294 | 31% | Springfield 97 · Chicago 293 |
Mile markers count from each state's southern line and start again at the next one, which is how most states number their exits as well. They are measured along the same road geometry these pages draw, so they land within a mile or two of the posted markers. A toll road that runs its own continuous numbering is the exception — on the New York Thruway the posts continue from New York City — and there the figure is how far into the state the place is rather than the number on the sign. Distances are measured state by state, never across a gap. Tennessee carries too little of the road for a page of its own — under the 25 miles that separate two markers on the map above — so it is named without a link.
5 current reports along the route. The 4 most serious are listed below. Always check with the responsible state DOT before setting off.
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Lanes blocked
Road Work : I-55 N at MS 32 EX 227 - Right lane closed. Yalobusha County
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Lanes blocked
Shorewood-WB Ramp Int55 SB
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Lanes blocked
Road Work : I-55 N between MS 584 EX 1 and MS 568 EX 8 - Left lane closed. Pike County
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Lanes blocked
Road Work : I-55 between Lawrence St EX 20A and US 98 E EX 15A - Left lane closed. Pike County
Winter reporting is off for the season. The state DOT feeds this page reads for Missouri and Illinois run from October 15 to April 15; outside that window they change only as needed. Our own forecast below runs year-round.
Reports for Missouri and Illinois come from each state's DOT, entered by maintenance staff and describing what is on the pavement, not the forecast; the state pages carry each DOT's terms and notices. No DOT winter report is read here yet for Louisiana, Mississippi, Tennessee and Arkansas. Always check with the responsible state DOT before setting off.
Arkansas I-55 weather conditions
Summaries fetched Oct 8, 2026 7:00 AM CDT
Blytheville, AR weather
- The current weather in Blytheville, AR, shows clear conditions with a temperature of 57°F and a relative humidity of 88%
- The wind is light, blowing from the southeast at approximately 1 mph
- The atmospheric pressure is measured at 30.06 inHg
- Visibility is good at 10.0 miles
- There are no significant weather alerts or precipitation expected at this time.
Illinois I-55 weather conditions
Summaries fetched Oct 8, 2026 7:02 AM CDT
Springfield, IL weather
- In Springfield, IL, the current weather is characterized by sunny conditions with a temperature of 58.3°F and a humidity level of 75%
- The wind is blowing from the north at a speed of approximately 2 to 4 mph
- The atmospheric pressure is measured at 30.06 inHg, and visibility is good at 9.9 miles
- There are no active weather alerts at this time, and the probability of precipitation is 0%, indicating a dry day ahead.
Chicago, IL weather
- The current weather in Chicago, IL is mostly sunny with a temperature of 55°F and a humidity level of 69%
- The wind is coming from the northwest at 2.8 mph with a direction of 300° (NW)
- The atmospheric pressure is 30.06 inHg
- Visibility is good at 9.9 miles
- There are no active weather alerts at this time.
Louisiana I-55 weather conditions
Summaries fetched Oct 8, 2026 7:03 AM CDT
New Orleans, LA weather
- In New Orleans, LA, the current weather is sunny with a temperature of 73.6°F and a dew point of 67.3°F
- The humidity level is at 81%, indicating a fairly humid atmosphere
- Winds are coming from the southeast at 6 mph and the pressure is measured at 29.8 inHg
- There is an active coastal flood advisory in effect from 3:00 AM on October 9, 2026, until 7:00 PM on October 10, 2026
- Although there are no significant weather impacts currently affecting outdoor activities, it is advisable to stay informed about the coastal flood advisory as conditions may change
- Visibility is good at 9.9 miles.
Missouri I-55 weather conditions
Summaries fetched Oct 8, 2026 7:04 AM CDT
Saint Louis, MO weather
- Current weather conditions in Saint Louis, MO indicate a temperature of 54°F with a humidity level of 79%
- The wind is blowing from the southwest at approximately 1 mph
- The atmospheric pressure is measured at 30.1 inHg
- Visibility is good, reaching up to 9.9 miles
- The weather is currently sunny, and there are no active weather alerts or precipitation reported.
Sikeston, MO weather
- The current weather in Sikeston, MO, is sunny with a temperature of 56°F and a dewpoint of 55°F
- Humidity levels are high at 99%, and the atmospheric pressure is 30.06 inHg
- Winds are light, blowing from the southeast at 2 mph
- Visibility is good at 10.3 miles
- No weather alerts are in effect at this time.
Mississippi I-55 weather conditions
Summaries fetched Oct 8, 2026 7:04 AM CDT
Jackson, MS weather
- The current weather in Jackson, MS, shows a temperature of 63.9°F with a dew point of 56.5°F and a relative humidity of 77%
- The atmospheric pressure is at 30.06 inHg with clear and sunny conditions
- Winds are coming from the southeast at 2 mph
- Visibility is good at 9.9 miles
- There are no active weather alerts at this time, and the probability of precipitation is 0%.
Tunica, MS weather
- The current weather in Tunica, MS, shows a temperature of 53°F with a dew point of 51°F and a high humidity level of 94%
- The pressure is steady at 30.06 inHg
- Winds are light, blowing from the southeast at 0 to 3 mph
- The conditions are clear and sunny, providing a pleasant start to the day
- Visibility is good at 10 miles
- There are no active weather alerts at this time.
Tennessee I-55 weather conditions
Summaries fetched Oct 8, 2026 12:07 PM UTC
Memphis, TN weather
- Memphis, TN is currently experiencing an air quality alert that is in effect from 2:59 PM on October 7, 2026, until 5:30 PM on October 8, 2026
- The weather conditions at this time include a temperature of 56°F with a dew point of 55.8°F and a humidity level of 98%
- The wind is blowing from the east-southeast at approximately 0 mph
- The atmospheric pressure is measured at 30.06 inHg and visibility is clear at 10.0 miles
- Outdoor activities should be approached with caution due to the moderate air quality risk in the area.
I-55 Traffic Cameras
updating…I-55/64 at Milepost 0.4
Photo from
I-55 at IL 16 (W)
Photo from
IL 29 (Sangamon Ave.) at Bus 55 (Dirksen Pkwy
Photo from
Bus 55 (Veteran's Parkway) at College
Photo from
Lemont / International Pkwy
Photo from
28th Place
Photo from
I-55 Road Weather FAQ
- Is I-55 closed right now?
- No full closures are reported on I-55 as of Oct 9, 2026 3:17 AM UTC. 5 lane closures, roadworks or restrictions are in force. They are listed under closures and road blocks on this page.
- What are I-55 road conditions today?
- The map on this page colors the route along I-55 by what is on the pavement right now — dry, wet, slush, snow or ice — from radar and surface data, last updated Oct 9, 2026 3:03 AM UTC. Right now temperatures run from 55°F to 81°F and the strongest wind is 18 mph.
- How long is Interstate 55, and which states does it cross?
- Measured state by state, I-55 runs 944 miles south to north, from LaPlace, Louisiana to Chicago, Illinois, through 6 states: Louisiana, Mississippi, Tennessee, Arkansas, Missouri and Illinois. The longest stretch is 294 miles across Illinois. Mile markers restart at each state line, so Jackson is around mile 95 in Mississippi.
- Are there live traffic cameras on I-55?
- Yes. This page shows 6 live views on I-55 from the state transportation departments' own camera feeds, further down the page, refreshed each time you load it.
- How often are I-55 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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