| NWS Forecast for: Sioux City IA Issued by: National Weather Service Sioux Falls, SD Last Update: 11:38 pm CDT May 19, 2026 | |
Overnight: Mostly clear, with a low around 35. Calm wind. Wednesday: Patchy frost before 7am. Otherwise, increasing clouds, with a high near 61. Calm wind becoming east southeast around 5 mph. Wednesday Night: Cloudy, with a low around 42. East southeast wind around 5 mph. Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 64. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Thursday Night: A 50 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 44. East wind 5 to 10 mph, with gusts as high as 20 mph. Friday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 62. East southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 44. Chance of precipitation is 40%. Saturday: Mostly cloudy, with a high near 71. Saturday Night: Partly cloudy, with a low around 47. Sunday: Mostly sunny, with a high near 81. Sunday Night: Mostly clear, with a low around 53. Memorial Day: Sunny, with a high near 86. Monday Night: Mostly clear, with a low around 56. Tuesday: Mostly sunny, with a high near 87. | |
| Sioux City IA 42.5°N 96.39°W (Elev. 1099 ft) | |
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