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I-29 in South Dakota Road Conditions
I-29 Road Conditions in South Dakota
Updated Aug 24, 2026 12:16 AM UTC · Mostly dry
Lowest 76°F near Sioux Falls, South Dakota · Highest wind 10 mph near Sioux Falls, South Dakota
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I-29 runs 253 miles across South Dakota. It passes Sioux Falls and Watertown.
- Interstate: I-29
- State: South Dakota
- Length in state: 253 mi
Weather data from Aug 24, 2026 12:16 AM UTC
76°F
80°F
10 mph
1012-1017 hPa
Current I-29 in South Dakota Conditions by State
South Dakota I-29 in South Dakota road conditions
Dry
- Sioux Falls 79°F · 10 mph wind · Dry
- Watertown 79°F · 7 mph wind · Dry
See live road conditions and weather for I-29 in South Dakota. Real-time surface conditions, radar, closures and DOT cameras on the interactive map for the South Dakota stretch of I-29.
Forecasts are generated for the next 6 hours at points along the route and include temperature and conditions such as clear skies, rain, storms, snow, high wind, hail, and more. sd511.org is South Dakota's official traveller-information service for closures and restrictions on this road; this map shows the weather alongside it.
No full closures are reported on I-29 in South Dakota as of Aug 24, 2026 12:16 AM UTC, and no lane closures or roadworks either. Always check with the responsible state DOT before setting off.
Sioux Falls, SD weather
- The current weather in Sioux Falls, SD, indicates a temperature of 13.5°C (56°F) with a dew point of 11.6°C (53°F), resulting in a relative humidity of 88%
- The sky is partly cloudy, covering approximately 50%
- Winds are coming from the southeast at 8 km/h (5 mph), with a visibility of 16.1 km (10.0 miles)
- The atmospheric pressure is measured at 1020 mb (30.12 inHg)
- The probability of precipitation is currently 0%, indicating no expected rain
- Conditions are stable for the time being, with no weather alerts in effect.
I-29 in South Dakota Road Weather FAQ
- Is I-29 in South Dakota closed right now?
- No full closures are reported on I-29 in South Dakota. No lane closures or roadworks are reported either.
- What are I-29 in South Dakota road conditions today?
- The map on this page colours the route along I-29 in South Dakota by what is on the carriageway right now — dry, wet, slush, snow or ice — from radar and surface data, last updated Aug 24, 2026 12:16 AM UTC. Right now temperatures run from 76°F to 80°F and the strongest wind is 10 mph.
- How often are I-29 in South Dakota 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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