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I-270 Saint Louis Road Conditions
Radar, DOT cameras and live pavement conditions on the Saint Louis bypass — plus closures, road work and the I-255 across the south that carries the rest of the ring.
Updated Oct 16, 2026 2:40 AM CDT · Mostly dry
Lowest 56°F near Saint Louis, Missouri · Highest wind 20 mph near Saint Louis, Missouri
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I-270 bypasses Saint Louis for 51 miles. It is not a full ring: I-255 across the south carries the rest of the way round.
- Ring road for: Saint Louis, Missouri
- Length: 51 mi
- Type: Bypass
- Ring completed by: I-255 across the south
Weather data from Oct 16, 2026 2:40 AM CDT
56°F
57°F
20 mph
30.03-30.11 inHg
Current I-270 Conditions by State
No full closures are reported on I-270 as of Oct 16, 2026 2:40 AM CDT, and no lane closures or roadworks either. Always check with the responsible state DOT before setting off.
No snow or ice reported. Missouri DOT shows all 4 segments of I-270 in normal condition as of Oct 16, 2026 4:30 AM CDT. Reports update every 10 minutes through April 15. When snow moves in, this section lists each affected stretch with its mile markers and how long it has been that way.
Conditions are entered by Missouri 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 MoDOT Traveler. Always check with MoDOT Traveler before setting off.
Missouri I-270 weather conditions
Summaries fetched Oct 15, 2026 7:04 AM CDT
Saint Louis, MO weather
- Current weather conditions in Saint Louis, MO indicate a major rain risk expected within the next hour, with rainfall rates reaching approximately 0.70 in/h
- The temperature is currently 71°F with a dew point of 69°F and humidity at 99%
- Winds are coming from the southeast at 4 mph
- The atmospheric pressure is measured at 30.06 inHg and visibility is at 5.2 miles, under cloudy skies with 100% cloud coverage
- There are no active alerts at this time.
I-270 Traffic Cameras
updating…I-70 at Milepost 15.4
Photo from — last answered a day ago, so this is the last frame we have
I-270 at Mile Post 15.0
Photo from — last answered a day ago, so this is the last frame we have
I-270 at Mile Post 13.3
Photo from — last answered a day ago, so this is the last frame we have
I-270 at Milepost 12 (W)
Photo from — last answered a day ago, so this is the last frame we have
I-270 at Milepost 11 (W)
Photo from — last answered a day ago, so this is the last frame we have
I-270 at Milepost 9.9
Photo from — last answered a day ago, so this is the last frame we have
I-270 Road Weather FAQ
- Is I-270 closed right now?
- No full closures are reported on I-270. No lane closures or roadworks are reported either.
- What are I-270 road conditions today?
- The map on this page colors the route along I-270 by what is on the pavement right now — dry, wet, slush, snow or ice — from radar and surface data, last updated Oct 16, 2026 2:40 AM CDT. Right now temperatures run from 56°F to 57°F and the strongest wind is 20 mph.
- How often does Missouri DOT update winter road conditions?
- Missouri 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-270 beside our own road-surface forecast.
- Are there live traffic cameras on I-270?
- Yes. This page shows 6 live views on I-270 from the state transportation departments' own camera feeds, further down the page, refreshed each time you load it.
- How often are I-270 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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