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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 Sep 14, 2026 8:03 PM CDT · Mostly dry
Lowest 82°F near Saint Louis, Missouri · Highest wind 13 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 Sep 14, 2026 8:03 PM CDT
82°F
85°F
13 mph
29.95-29.95 inHg
Current I-270 Conditions by State
No full closures are reported on I-270 as of Sep 14, 2026 8:03 PM CDT, and no lane closures or roadworks either. Always check with the responsible state DOT before setting off.
Missouri I-270 weather conditions
Summaries fetched Sep 14, 2026 7:04 AM CDT
Saint Louis, MO weather
- The current weather in Saint Louis, MO is characterized by sunny conditions with a temperature of 64.4°F
- The humidity level is at 73%, contributing to a comfortable atmosphere
- Winds are blowing from the east-southeast at 3 to 6 mph
- The pressure is measured at 30.17 inHg, indicating stable weather
- Visibility is good, reaching up to 9.9 miles
- There are no active weather alerts at this time.
I-270 Traffic Cameras
updating…I-270 at Mile Post 13.3
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I-270 at Mile Post 13.3 (W)
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I-270 at Mile Post 15.0
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I-270 at Mile Post 15.0 (W)
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I-270 at Milepost 11 (W)
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I-270 at Milepost 12 (W)
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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 Sep 14, 2026 8:03 PM CDT. Right now temperatures run from 82°F to 85°F and the strongest wind is 13 mph.
- 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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