Weather in Sioux City, IA
Sioux City, Thursday, 12 November, 18:23
Clear. Feels like 36°. High 43°, low 31°.
Monthly outlook for Sioux City, IA: average high 48.5°, average low 35.4°. That is 2.4° above the climate normal for November. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 18 November (65.9°), the coolest 27 November (20.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 November – 21 November | 51.9° | 46.1° | +3.2° |
| 22 November – 1 December | 43° | 39.6° | +1.8° |
| 2 December – 11 December | at normal | 34.5° | — |
November records over 66 years
0
Sioux City, Friday, 13 November
Partly cloudy. High 42°, low 26°.
0
Sioux City, Saturday, 14 November
Clear. High 43°, low 27°.
0
Sioux City, Sunday, 15 November
Mostly clear. High 47°, low 28°.
0Sioux City, Monday, 16 November
Clear. High 52°, low 32°.
0
Sioux City, Tuesday, 17 November
Overcast. High 55°, low 41°.
0.01
Sioux City, Wednesday, 18 November
Light rain. High 66°, low 48°.
0Sioux City, Thursday, 19 November
Overcast. High 55°, low 43°.
0.12Sioux City, Friday, 20 November
Light rain. High 58°, low 48°.
0.48Sioux City, Saturday, 21 November
Light rain. High 58°, low 58°.
0.77Sioux City, Sunday, 22 November
Rain. High 59°, low 52°.
0.06
Sioux City, Monday, 23 November
Snow. High 58°, low 36°.
0.02Sioux City, Tuesday, 24 November
Light snow. High 38°, low 29°.
0Sioux City, Wednesday, 25 November
Overcast. High 30°, low 24°.
0Sioux City, Thursday, 26 November
Light snow. High 34°, low 23°.
0Sioux City, Friday, 27 November
Clear. High 40°, low 20°.
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.
0.06Sioux City, Monday, 30 November
Climate normal for this date — 60-year average.
0.06Sioux City, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.02Sioux City, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.03Sioux City, Thursday, 3 December
Climate normal for this date — 60-year average.
0.02Sioux City, Friday, 4 December
Climate normal for this date — 60-year average.
0.02Sioux City, Saturday, 5 December
Climate normal for this date — 60-year average.
0.03Sioux City, Sunday, 6 December
Climate normal for this date — 60-year average.
0.03Sioux City, Monday, 7 December
Climate normal for this date — 60-year average.
0.03Sioux City, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.03Sioux City, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.02Sioux City, Thursday, 10 December
Climate normal for this date — 60-year average.
0.03Sioux City, Friday, 11 December
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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