| NWS Forecast for: Sioux City IA Issued by: National Weather Service Sioux Falls, SD Last Update: 4:58 am CST Jan 20, 2026 |  |
Today: A 40 percent chance of snow, mainly after 3pm. Increasing clouds, with a high near 27. Light southeast wind becoming south southeast 5 to 10 mph in the morning. Little or no snow accumulation expected. Tonight: A 50 percent chance of snow, mainly before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 15. South southeast wind 5 to 10 mph becoming northwest in the evening. New snow accumulation of less than a half inch possible. Wednesday: A 20 percent chance of snow after noon. Mostly sunny, with a high near 38. Breezy, with a west southwest wind 5 to 15 mph increasing to 15 to 25 mph in the afternoon. Winds could gust as high as 40 mph. Wednesday Night: Partly cloudy, with a low around 9. Blustery, with a west northwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph. Thursday: Partly sunny, with a high near 24. West wind 5 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph. Thursday Night: Mostly cloudy, with a low around -11. North wind around 10 mph. Friday: Partly sunny, with a high near 1. Friday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around -8. Saturday: A 20 percent chance of snow. Partly sunny, with a high near 10. Saturday Night: Partly cloudy, with a low around -4. Sunday: Mostly sunny, with a high near 20. Sunday Night: Partly cloudy, with a low around 2. Monday: Mostly sunny, with a high near 30. | |
| Sioux City IA 42.5°N 96.41°W (Elev. 1106 ft) | |
Visit your local NWS office at: https://www.weather.gov/fsd/ |
