Weather in Sioux Falls, SD
Sioux Falls, Friday, 23 October, 17:02
Overcast. Feels like 73°. High 74°, low 59°.
Monthly outlook for Sioux Falls, SD: average high 57.8°, average low 46.5°. That is 2.8° above the climate normal for October. Precipitation is expected on 9 days (about 4.2 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 23 October (73.6°), the coolest 4 November (38°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 23 October – 1 November | 56.9° | 54.3° | +1.4° |
| 2 November – 11 November | 59.2° | 48.4° | +6° |
| 12 November – 21 November | at normal | 43.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Worthing (15 mi).
0.19
Sioux Falls, Saturday, 24 October
Rain. High 67°, low 51°.
0.24Sioux Falls, Sunday, 25 October
Rain. High 51°, low 43°.
1.29Sioux Falls, Monday, 26 October
Rain. High 48°, low 42°.
0.21Sioux Falls, Tuesday, 27 October
Rain. High 55°, low 44°.
0.18Sioux Falls, Wednesday, 28 October
Rain. High 52°, low 42°.
0
Sioux Falls, Thursday, 29 October
Mostly clear. High 54°, low 40°.
0Sioux Falls, Friday, 30 October
Overcast. High 55°, low 40°.
0.49Sioux Falls, Saturday, 31 October
Rain. High 55°, low 50°.
0Sioux Falls, Sunday, 1 November
Overcast. High 59°, low 54°.
0.97Sioux Falls, Monday, 2 November
Rain. High 55°, low 52°.
0.01Sioux Falls, Tuesday, 3 November
Light rain. High 52°, low 41°.
0
Sioux Falls, Wednesday, 4 November
Partly cloudy. High 57°, low 38°.
0Sioux Falls, Thursday, 5 November
Mostly clear. High 67°, low 45°.
0Sioux Falls, Friday, 6 November
Overcast. High 65°, low 47°.
0.37Sioux Falls, Saturday, 7 November
Rain. High 60°, low 54°.
0.06Sioux Falls, Sunday, 8 November
Climate normal for this date — 60-year average.
0.13Sioux Falls, Monday, 9 November
Climate normal for this date — 60-year average.
0.09Sioux Falls, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.05Sioux Falls, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Sioux Falls, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Sioux Falls, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Sioux Falls, Saturday, 14 November
Climate normal for this date — 60-year average.
0.07Sioux Falls, Sunday, 15 November
Climate normal for this date — 60-year average.
0.08Sioux Falls, Monday, 16 November
Climate normal for this date — 60-year average.
0.06Sioux Falls, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Sioux Falls, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09Sioux Falls, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07Sioux Falls, Friday, 20 November
Climate normal for this date — 60-year average.
0.04Sioux Falls, Saturday, 21 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 Falls, SD 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 Falls, SD 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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