| National Weather Service Forecast for:
Sioux City IA Issued by: National Weather Service Sioux Falls, SD |
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| Updated: 9:58 pm CST Dec 22, 2025 | ||||||||||||||||||
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| Overnight |
Mostly cloudy, with a low around 31. North northwest wind around 5 mph. |
| Tuesday |
Partly sunny, with a high near 44. North northwest wind around 5 mph becoming calm in the morning. |
| Tuesday Night |
Mostly cloudy, with a low around 31. Southeast wind around 5 mph. |
| Wednesday |
Mostly cloudy, with a high near 50. South wind around 5 mph. |
| Wednesday Night |
Mostly cloudy, with a low around 33. Calm wind becoming east southeast around 5 mph after midnight. |
| Christmas Day |
Mostly cloudy, with a high near 53. Southeast wind 5 to 10 mph. |
| Thursday Night |
Mostly cloudy, with a low around 34. |
| Friday |
Mostly sunny, with a high near 49. |
| Friday Night |
Mostly cloudy, with a low around 36. |
| Saturday |
Partly sunny, with a high near 50. |
| Saturday Night |
Partly cloudy, with a low around 17. |
| Sunday |
Sunny, with a high near 29. |
| Sunday Night |
Partly cloudy, with a low around 17. |
| Monday |
Sunny, with a high near 35. |
Forecast from NOAA-NWS for Sioux City IA.
