| NWS Forecast for: Sioux City IA Issued by: National Weather Service Sioux Falls, SD Last Update: 6:28 pm CST Feb 15, 2026 | |
Tonight: Mostly cloudy, with a low around 3. South wind 15 to 20 km/h decreasing to 5 to 10 km/h after midnight. Winds could gust as high as 35 km/h. Washington's Birthday: Mostly sunny, with a high near 19. South southeast wind 5 to 10 km/h becoming east in the morning. Monday Night: Increasing clouds, with a low around 6. East southeast wind 10 to 15 km/h. Tuesday: A 20 percent chance of rain after noon. Cloudy through mid morning, then gradual clearing, with a high near 22. East southeast wind 15 to 20 km/h becoming south southeast 20 to 25 km/h in the afternoon. Winds could gust as high as 45 km/h. Tuesday Night: A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 4. South southwest wind 15 to 25 km/h becoming west after midnight. Winds could gust as high as 40 km/h. Wednesday: Sunny, with a high near 13. West wind 15 to 25 km/h, with gusts as high as 45 km/h. Wednesday Night: Mostly cloudy, with a low around -3. Thursday: A 40 percent chance of snow. Partly sunny, with a high near 3. Breezy. Thursday Night: A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around -9. Friday: Mostly sunny, with a high near 0. Friday Night: A 30 percent chance of snow. Mostly cloudy, with a low around -9. Saturday: A 20 percent chance of snow. Mostly sunny, with a high near 3. Saturday Night: A 20 percent chance of snow. Partly cloudy, with a low around -11. Sunday: Sunny, with a high near 1. | |
| Sioux City IA 42.5°N 96.41°W (Elev. 1106 m) | |
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