Weather in Sioux City, IA
Sioux City, Saturday, 31 October, 02:31
Overcast. Feels like 56°. High 64°, low 56°.
Monthly outlook for Sioux City, IA: average high 59.5°, average low 46.1°. That is 5.2° above the climate normal for October. Precipitation is expected on 5 days (about 1.8 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 10 November (70.5°), the coolest 14 November (35.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 31 October – 9 November | 61.5° | 52.1° | +5.2° |
| 10 November – 19 November | 56.3° | 46.7° | +5.3° |
| 20 November – 29 November | at normal | 40.9° | — |
October records over 66 years
0.09
Sioux City, Sunday, 1 November
Light rain. High 66°, low 55°.
1.15Sioux City, Monday, 2 November
Heavy rain. High 66°, low 59°.
0.25Sioux City, Tuesday, 3 November
Light rain. High 59°, low 46°.
0.23Sioux City, Wednesday, 4 November
Rain. High 54°, low 40°.
0
Sioux City, Thursday, 5 November
Partly cloudy. High 56°, low 40°.
0
Sioux City, Friday, 6 November
Clear. High 60°, low 44°.
0Sioux City, Saturday, 7 November
Overcast. High 61°, low 47°.
0Sioux City, Sunday, 8 November
Clear. High 61°, low 46°.
0
Sioux City, Monday, 9 November
Mostly clear. High 67°, low 46°.
0Sioux City, Tuesday, 10 November
Clear. High 71°, low 51°.
0Sioux City, Wednesday, 11 November
Clear. High 59°, low 50°.
0Sioux City, Thursday, 12 November
Clear. High 56°, low 45°.
0Sioux City, Friday, 13 November
Clear. High 52°, low 37°.
0Sioux City, Saturday, 14 November
Overcast. High 49°, low 35°.
0Sioux City, Sunday, 15 November
Overcast. High 52°, low 41°.
0.08Sioux City, Monday, 16 November
Climate normal for this date — 60-year average.
0.06Sioux City, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Sioux City, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08Sioux City, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07Sioux City, Friday, 20 November
Climate normal for this date — 60-year average.
0.04Sioux City, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Sioux City, Sunday, 22 November
Climate normal for this date — 60-year average.
0.04Sioux City, Monday, 23 November
Climate normal for this date — 60-year average.
0.06Sioux City, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.02Sioux City, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.05Sioux City, Thursday, 26 November
Climate normal for this date — 60-year average.
0.09Sioux City, Friday, 27 November
Climate normal for this date — 60-year average.
0.07Sioux City, Saturday, 28 November
Climate normal for this date — 60-year average.
0.06Sioux City, Sunday, 29 November
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Sioux City, IA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Sioux City, IA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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