I-55 Illinois Road Conditions

I-55 crosses 294 miles of Illinois, from the Missouri line to its end in the state. That is 30% of I-55's 964 miles.

Inside Illinois it meets I-80, I-94 and I-90 at Chicago, and I-44, I-64, I-70 and I-74.

By mile marker, I-55 passes Springfield 97 · Chicago 293.

1 current report along the route. Always check with the responsible state DOT before setting off.

• Lanes blocked

  Shorewood-WB Ramp Int55 SB

  SHOREWOOD • IL • Until Oct 30, 12:00 PM

Winter reporting is off for the season. Iowa DOT's Winter Road Conditions – Midwest Region feed, which carries Illinois DOT's segment-by-segment snow and ice conditions, runs from October 15 to April 15; outside that window it changes only as needed. Our own forecast below runs year-round.

Conditions are entered by Illinois DOT maintenance staff and describe what is on the pavement, not the forecast. They reach this page through Iowa DOT's Winter Road Conditions – Midwest Region feed, published for reference; the authoritative report is Getting Around Illinois. Always check with Getting Around Illinois before setting off.

Source: Illinois DOT, via Iowa DOT's Midwest Region layer, CC BY 4.0.

NOAA 1991–2020 Climate Normals, from 2 weather stations in Illinois. A dash is a figure that station does not report, not a zero.

Towns Along I-55 in Illinois

From Cahokia Heights to Chicago, with the position of each town measured along this stretch itself — counted from the Cahokia Heights end, not from a state milepost, so it will not match the numbers on the signs.

1. 1 mi Cahokia Heights 3.1 mi off the road
2. 11 mi Collinsville
3. 45 mi Gillespie 4.5 mi off the road
4. 94 mi Rochester 2.2 mi off the road
5. 96 mi Springfield 2.4 mi off the road
6. 159 mi Bloomington 3.1 mi off the road
7. 235 mi Braidwood 1.0 mi off the road
8. 258 mi Crest Hill 2.8 mi off the road
9. 276 mi Willowbrook 1.3 mi off the road
10. 280 mi Hickory Hills 3.0 mi off the road
11. 283 mi Broadview 4.7 mi off the road
12. 290 mi Chicago

Places from the US Census Gazetteer and population estimates, both public domain; distances measured along this page's own route geometry.

Related Roads

I-55 in Illinois Road Weather FAQ

Is Interstate 55 in Illinois closed right now?

No full closures are reported on I-55 in Illinois as of Oct 8, 2026 10:47 PM CDT. One lane closure, roadworks or restriction is in force. They are listed under closures and road blocks on this page.

What are I-55 in Illinois road conditions today?

The map on this page colors the route along I-55 in Illinois by what is on the pavement right now — dry, wet, slush, snow or ice — from radar and surface data, last updated Oct 8, 2026 9:03 PM CDT. Right now temperatures run from 59°F to 69°F and the strongest wind is 4 mph.

Where are Illinois road closures reported officially?

Illinois's official traveler information service is Getting Around Illinois, at gettingaroundillinois.com, and it is where closures and restrictions are reported.

How often does Illinois DOT update winter road conditions?

Illinois DOT reports the winter condition of each stretch of state highway through Iowa DOT's Winter Road Conditions – Midwest Region feed, which runs from October 15 to April 15 and refreshes every 10 minutes. The conditions are entered by maintenance staff and describe what is on the pavement, not a forecast; this page shows the current report for I-55 in Illinois beside our own road-surface forecast.

Are there live traffic cameras on I-55 in Illinois?

Yes. This page shows 6 live views on I-55 in Illinois from the state transportation departments' own camera feeds, further down the page, refreshed each time you load it.

How often are I-55 in Illinois 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.